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CVE-2026-20125

27
FAUCET Score

CVE-2026-20125 is a high-severity denial-of-service vulnerability affecting the HTTP Server feature in Cisco IOS Software and Cisco IOS XE Software Release 3E. An authenticated, remote attacker can exploit this by sending malformed HTTP requests, causing the device to unexpectedly reload and resulting in a DoS condition. With a CVSS score of 7.7, this vulnerability has a high impact on availability due to improper input validation. There is currently no evidence of active exploitation, nor are public exploit codes available. While it has received some community discussion, it is not on any active hot lists.

Impacted Technologies

VendorProductVersion(s)CPE
CiscoCisco IOS XE Software
3.10.0E, 3.10.0cE, 3.10.1E, 3.10.2E, 3.10.3E, 3.11.0E, 3.11.0S, 3.11.10E, 3.11.11E, 3.11.12E, 3.11.13E, 3.11.1E, 3.11.1S, 3.11.1aE, 3.11.2E, 3.11.2S, 3.11.3E, 3.11.3S, 3.11.3aE, 3.11.4E, 3.11.4S, 3.11.5E, 3.11.6E, 3.11.7E, 3.11.8E, 3.11.9E, 3.12.0S, 3.12.0aS, 3.12.1S, 3.12.2S, 3.12.3S, 3.12.4S, 3.13.0S, 3.13.0aS, 3.13.10S, 3.13.1S, 3.13.2S, 3.13.2aS, 3.13.3S, 3.13.4S, 3.13.5S, 3.13.5aS, 3.13.6S, 3.13.6aS, 3.13.7S, 3.13.7aS, 3.13.8S, 3.13.9S, 3.14.0S, 3.14.1S, 3.14.2S, 3.14.3S, 3.14.4S, 3.15.0S, 3.15.1S, 3.15.1cS, 3.15.2S, 3.15.3S, 3.15.4S, 3.16.0S, 3.16.0cS, 3.16.10S, 3.16.1S, 3.16.1aS, 3.16.2S, 3.16.2aS, 3.16.2bS, 3.16.3S, 3.16.3aS, 3.16.4S, 3.16.4aS, 3.16.4bS, 3.16.4dS, 3.16.5S, 3.16.6S, 3.16.6bS, 3.16.7S, 3.16.7aS, 3.16.7bS, 3.16.8S, 3.16.9S, 3.17.0S, 3.17.1S, 3.17.1aS, 3.17.2S, 3.17.3S, 3.17.4S, 3.18.0S, 3.18.0SP, 3.18.0aS, 3.18.1S, 3.18.1SP, 3.18.1aSP, 3.18.1bSP, 3.18.1cSP, 3.18.2S, 3.18.2SP, 3.18.2aSP, 3.18.3S, 3.18.3SP, 3.18.3aSP, 3.18.3bSP, 3.18.4S, 3.18.4SP, 3.18.5SP, 3.18.6SP, 3.18.7SP, 3.18.8aSP, 3.18.9SP, 3.5.0E, 3.5.0SQ, 3.5.1E, 3.5.1SQ, 3.5.2E, 3.5.2SQ, 3.5.3E, 3.5.3SQ, 3.5.4SQ, 3.5.5SQ, 3.5.6SQ, 3.5.7SQ, 3.5.8SQ, 3.6.0E, 3.6.10E, 3.6.1E, 3.6.2E, 3.6.2aE, 3.6.3E, 3.6.4E, 3.6.5E, 3.6.5aE, 3.6.6E, 3.6.7E, 3.6.7bE, 3.6.8E, 3.6.9E, 3.7.0E, 3.7.1E, 3.7.2E, 3.7.3E, 3.7.4E, 3.7.5E, 3.8.0E, 3.8.10E, 3.8.1E, 3.8.2E, 3.8.3E, 3.8.4E, 3.8.5E, 3.8.5aE, 3.8.6E, 3.8.7E, 3.8.8E, 3.8.9E, 3.9.0E, 3.9.1E, 3.9.2ECNA affected
CiscoIOS
12.2(25)EZ, 12.2(25)EZ1, 12.2(33)CY, 12.2(33)CY1, 12.2(33)CY2, 12.2(33)SCG, 12.2(33)SCG1, 12.2(33)SCG2, 12.2(33)SCG3, 12.2(33)SCG4, 12.2(33)SCG5, 12.2(33)SCG6, 12.2(33)SCG7, 12.2(33)SCH, 12.2(33)SCH0a, 12.2(33)SCH1, 12.2(33)SCH2, 12.2(33)SCH2a, 12.2(33)SCH3, 12.2(33)SCH4, 12.2(33)SCH5, 12.2(33)SCH6, 12.2(33)SCI, 12.2(33)SCI1, 12.2(33)SCI1a, 12.2(33)SCI2, 12.2(33)SCI2a, 12.2(33)SCI3, 12.2(33)SCJ, 12.2(33)SCJ1a, 12.2(33)SCJ2, 12.2(33)SCJ2a, 12.2(33)SCJ2b, 12.2(33)SCJ2c, 12.2(33)SCJ3, 12.2(33)SCJ4, 12.2(33)SRE, 12.2(33)SRE0a, 12.2(33)SRE1, 12.2(33)SRE10, 12.2(33)SRE11, 12.2(33)SRE12, 12.2(33)SRE13, 12.2(33)SRE14, 12.2(33)SRE15, 12.2(33)SRE15a, 12.2(33)SRE2, 12.2(33)SRE3, 12.2(33)SRE4, 12.2(33)SRE5, 12.2(33)SRE6, 12.2(33)SRE7, 12.2(33)SRE7a, 12.2(33)SRE8, 12.2(33)SRE9, 12.2(33)SRE9a, 12.2(33)SXI, 12.2(33)SXI1, 12.2(33)SXI10, 12.2(33)SXI11, 12.2(33)SXI12, 12.2(33)SXI13, 12.2(33)SXI14, 12.2(33)SXI2, 12.2(33)SXI2a, 12.2(33)SXI3, 12.2(33)SXI4, 12.2(33)SXI4a, 12.2(33)SXI5, 12.2(33)SXI6, 12.2(33)SXI7, 12.2(33)SXI8, 12.2(33)SXI8a, 12.2(33)SXI9, 12.2(33)SXJ, 12.2(33)SXJ1, 12.2(33)SXJ10, 12.2(33)SXJ2, 12.2(33)SXJ3, 12.2(33)SXJ4, 12.2(33)SXJ5, 12.2(33)SXJ6, 12.2(33)SXJ7, 12.2(33)SXJ8, 12.2(33)SXJ9, 12.2(44)SQ, 12.2(44)SQ2, 12.2(50)SQ, 12.2(50)SQ1, 12.2(50)SQ2, 12.2(50)SQ3, 12.2(50)SQ4, 12.2(50)SQ5, 12.2(50)SQ6, 12.2(50)SQ7, 12.2(53)EZ, 12.2(55)EZ, 12.2(55)SE, 12.2(55)SE1, 12.2(55)SE10, 12.2(55)SE11, 12.2(55)SE12, 12.2(55)SE13, 12.2(55)SE2, 12.2(55)SE3, 12.2(55)SE4, 12.2(55)SE5, 12.2(55)SE6, 12.2(55)SE7, 12.2(55)SE8, 12.2(55)SE9, 12.2(58)EZ, 12.2(58)SE, 12.2(58)SE1, 12.2(58)SE2, 12.2(60)EZ, 12.2(60)EZ1, 12.2(60)EZ10, 12.2(60)EZ11, 12.2(60)EZ12, 12.2(60)EZ13, 12.2(60)EZ14, 12.2(60)EZ15, 12.2(60)EZ2, 12.2(60)EZ3, 12.2(60)EZ4, 12.2(60)EZ5, 12.2(60)EZ6, 12.2(60)EZ7, 12.2(60)EZ8, 12.2(60)EZ9, 12.4(24)MDB, 12.4(24)MDB1, 12.4(24)MDB10, 12.4(24)MDB11, 12.4(24)MDB12, 12.4(24)MDB13, 12.4(24)MDB14, 12.4(24)MDB15, 12.4(24)MDB16, 12.4(24)MDB17, 12.4(24)MDB18, 12.4(24)MDB19, 12.4(24)MDB3, 12.4(24)MDB4, 12.4(24)MDB5, 12.4(24)MDB5a, 12.4(24)MDB6, 12.4(24)MDB7, 12.4(24)MDB8, 12.4(24)MDB9, 12.4(25d)JAX, 12.4(25d)JAX1, 12.4(25e)JAM, 12.4(25e)JAM2, 12.4(25e)JAM3, 12.4(25e)JAM4, 12.4(25e)JAM5, 12.4(25e)JAM6, 12.4(25e)JAO, 12.4(25e)JAO1, 12.4(25e)JAO2, 12.4(25e)JAO3, 12.4(25e)JAO4, 12.4(25e)JAO5, 12.4(25e)JAO6, 12.4(25e)JAP, 12.4(25e)JAP1, 12.4(25e)JAP10, 12.4(25e)JAP11, 12.4(25e)JAP12, 12.4(25e)JAP1n, 12.4(25e)JAP4, 12.4(25e)JAP5, 12.4(25e)JAP6, 12.4(25e)JAP7, 12.4(25e)JAP8, 12.4(25e)JAX, 12.4(25e)JAX1, 12.4(25e)JAX2, 12.4(25e)JAZ, 12.4(3)JK, 12.4(3)JK1, 12.4(3)JK2, 12.4(3)JK3, 12.4(3)JK4, 15.0(1)EY, 15.0(1)EY1, 15.0(1)EY2, 15.0(1)SE, 15.0(1)SE1, 15.0(1)SE2, 15.0(1)SE3, 15.0(1)SY, 15.0(1)SY1, 15.0(1)SY10, 15.0(1)SY2, 15.0(1)SY3, 15.0(1)SY4, 15.0(1)SY5, 15.0(1)SY6, 15.0(1)SY7, 15.0(1)SY7a, 15.0(1)SY8, 15.0(1)SY9, 15.0(2)EA, 15.0(2)EA1, 15.0(2)EJ, 15.0(2)EJ1, 15.0(2)EK, 15.0(2)EK1, 15.0(2)EY, 15.0(2)EY1, 15.0(2)EY2, 15.0(2)EY3, 15.0(2)SE, 15.0(2)SE1, 15.0(2)SE10, 15.0(2)SE10a, 15.0(2)SE11, 15.0(2)SE12, 15.0(2)SE13, 15.0(2)SE2, 15.0(2)SE3, 15.0(2)SE4, 15.0(2)SE5, 15.0(2)SE6, 15.0(2)SE7, 15.0(2)SE8, 15.0(2)SE9, 15.0(2)SG, 15.0(2)SG1, 15.0(2)SG10, 15.0(2)SG11, 15.0(2)SG2, 15.0(2)SG3, 15.0(2)SG4, 15.0(2)SG5, 15.0(2)SG6, 15.0(2)SG7, 15.0(2)SG8, 15.0(2)SG9, 15.0(2)SQD, 15.0(2)SQD1, 15.0(2)SQD2, 15.0(2)SQD3, 15.0(2)SQD4, 15.0(2)SQD5, 15.0(2)SQD6, 15.0(2)SQD7, 15.0(2)SQD8, 15.1(1)S, 15.1(1)S1, 15.1(1)S2, 15.1(1)SG, 15.1(1)SG1, 15.1(1)SG2, 15.1(1)SY, 15.1(1)SY1, 15.1(1)SY2, 15.1(1)SY3, 15.1(1)SY4, 15.1(1)SY5, 15.1(1)SY6, 15.1(2)GC, 15.1(2)GC1, 15.1(2)GC2, 15.1(2)S, 15.1(2)S1, 15.1(2)S2, 15.1(2)SG, 15.1(2)SG1, 15.1(2)SG2, 15.1(2)SG3, 15.1(2)SG4, 15.1(2)SG5, 15.1(2)SG6, 15.1(2)SG7, 15.1(2)SG8, 15.1(2)SY, 15.1(2)SY1, 15.1(2)SY10, 15.1(2)SY11, 15.1(2)SY12, 15.1(2)SY13, 15.1(2)SY14, 15.1(2)SY15, 15.1(2)SY16, 15.1(2)SY2, 15.1(2)SY3, 15.1(2)SY4, 15.1(2)SY4a, 15.1(2)SY5, 15.1(2)SY6, 15.1(2)SY7, 15.1(2)SY8, 15.1(2)SY9, 15.1(3)S, 15.1(3)S0a, 15.1(3)S1, 15.1(3)S2, 15.1(3)S3, 15.1(3)S4, 15.1(3)S5, 15.1(3)S5a, 15.1(3)S6, 15.1(4)GC, 15.1(4)GC1, 15.1(4)GC2, 15.1(4)M, 15.1(4)M1, 15.1(4)M10, 15.1(4)M2, 15.1(4)M3, 15.1(4)M3a, 15.1(4)M4, 15.1(4)M5, 15.1(4)M6, 15.1(4)M7, 15.1(4)M8, 15.1(4)M9, 15.2(1)E, 15.2(1)E1, 15.2(1)E2, 15.2(1)E3, 15.2(1)EY, 15.2(1)GC, 15.2(1)GC1, 15.2(1)GC2, 15.2(1)S, 15.2(1)S1, 15.2(1)S2, 15.2(1)SY, 15.2(1)SY0a, 15.2(1)SY1, 15.2(1)SY1a, 15.2(1)SY2, 15.2(1)SY3, 15.2(1)SY4, 15.2(1)SY5, 15.2(1)SY6, 15.2(1)SY7, 15.2(1)SY8, 15.2(2)E, 15.2(2)E1, 15.2(2)E10, 15.2(2)E2, 15.2(2)E3, 15.2(2)E4, 15.2(2)E5, 15.2(2)E5a, 15.2(2)E5b, 15.2(2)E6, 15.2(2)E7, 15.2(2)E8, 15.2(2)E9, 15.2(2)EA, 15.2(2)EA1, 15.2(2)EA2, 15.2(2)EA3, 15.2(2)GC, 15.2(2)JAX, 15.2(2)JB, 15.2(2)JB2, 15.2(2)JB3, 15.2(2)JB4, 15.2(2)JB5, 15.2(2)JB6, 15.2(2)S, 15.2(2)S0a, 15.2(2)S0c, 15.2(2)S1, 15.2(2)S2, 15.2(2)SY, 15.2(2)SY1, 15.2(2)SY2, 15.2(2)SY3, 15.2(2a)E1, 15.2(2a)E2, 15.2(3)E, 15.2(3)E1, 15.2(3)E2, 15.2(3)E3, 15.2(3)E4, 15.2(3)EA, 15.2(3)GC, 15.2(3)GC1, 15.2(3a)E, 15.2(4)E, 15.2(4)E1, 15.2(4)E10, 15.2(4)E10a, 15.2(4)E10d, 15.2(4)E2, 15.2(4)E3, 15.2(4)E4, 15.2(4)E5, 15.2(4)E6, 15.2(4)E7, 15.2(4)E8, 15.2(4)E9, 15.2(4)EA, 15.2(4)EA1, 15.2(4)EA3, 15.2(4)EA4, 15.2(4)EA5, 15.2(4)EA6, 15.2(4)EA7, 15.2(4)EA8, 15.2(4)EA9, 15.2(4)EA9a, 15.2(4)EC1, 15.2(4)EC2, 15.2(4)GC, 15.2(4)GC1, 15.2(4)GC2, 15.2(4)GC3, 15.2(4)JB, 15.2(4)JB1, 15.2(4)JB2, 15.2(4)JB3, 15.2(4)JB3a, 15.2(4)JB3b, 15.2(4)JB3h, 15.2(4)JB3s, 15.2(4)JB4, 15.2(4)JB5, 15.2(4)JB5m, 15.2(4)JB6, 15.2(4)JN, 15.2(4)M, 15.2(4)M1, 15.2(4)M10, 15.2(4)M11, 15.2(4)M2, 15.2(4)M3, 15.2(4)M4, 15.2(4)M5, 15.2(4)M6, 15.2(4)M6a, 15.2(4)M7, 15.2(4)M8, 15.2(4)M9, 15.2(4)S, 15.2(4)S1, 15.2(4)S2, 15.2(4)S3, 15.2(4)S3a, 15.2(4)S4, 15.2(4)S4a, 15.2(4)S5, 15.2(4)S6, 15.2(4)S7, 15.2(5)E, 15.2(5)E1, 15.2(5)E2, 15.2(5)E2c, 15.2(5)EA, 15.2(5)EX, 15.2(5a)E, 15.2(5a)E1, 15.2(5b)E, 15.2(5c)E, 15.2(6)E, 15.2(6)E0a, 15.2(6)E0c, 15.2(6)E1, 15.2(6)E2, 15.2(6)E2a, 15.2(6)E2b, 15.2(6)E3, 15.2(7)E, 15.2(7)E0a, 15.2(7)E0b, 15.2(7)E0s, 15.2(7)E1, 15.2(7)E10, 15.2(7)E11, 15.2(7)E12, 15.2(7)E13, 15.2(7)E1a, 15.2(7)E2, 15.2(7)E2a, 15.2(7)E3, 15.2(7)E3k, 15.2(7)E4, 15.2(7)E5, 15.2(7)E6, 15.2(7)E7, 15.2(7)E8, 15.2(7)E9, 15.2(7a)E0b, 15.2(7b)E0b, 15.2(8)E, 15.2(8)E1, 15.2(8)E2, 15.2(8)E3, 15.2(8)E4, 15.2(8)E5, 15.2(8)E6, 15.2(8)E7, 15.2(8)E8, 15.3(1)S, 15.3(1)S1, 15.3(1)S2, 15.3(1)SY, 15.3(1)SY1, 15.3(1)SY2, 15.3(1)T, 15.3(1)T1, 15.3(1)T2, 15.3(1)T3, 15.3(1)T4, 15.3(2)S, 15.3(2)S1, 15.3(2)S2, 15.3(2)T, 15.3(2)T1, 15.3(2)T2, 15.3(2)T3, 15.3(2)T4, 15.3(3)JA, 15.3(3)JA1, 15.3(3)JA10, 15.3(3)JA11, 15.3(3)JA12, 15.3(3)JA1m, 15.3(3)JA4, 15.3(3)JA5, 15.3(3)JA6, 15.3(3)JA7, 15.3(3)JA8, 15.3(3)JAA, 15.3(3)JAA11, 15.3(3)JAA12, 15.3(3)JAB, 15.3(3)JAX, 15.3(3)JAX1, 15.3(3)JAX2, 15.3(3)JB, 15.3(3)JBB, 15.3(3)JBB1, 15.3(3)JBB2, 15.3(3)JBB4, 15.3(3)JBB5, 15.3(3)JBB6, 15.3(3)JBB6a, 15.3(3)JBB8, 15.3(3)JC, 15.3(3)JC1, 15.3(3)JC14, 15.3(3)JC2, 15.3(3)JC3, 15.3(3)JC4, 15.3(3)JC5, 15.3(3)JC6, 15.3(3)JC8, 15.3(3)JC9, 15.3(3)JCA7, 15.3(3)JCA8, 15.3(3)JCA9, 15.3(3)JD, 15.3(3)JD11, 15.3(3)JD13, 15.3(3)JD14, 15.3(3)JD16, 15.3(3)JD17, 15.3(3)JD2, 15.3(3)JD3, 15.3(3)JD4, 15.3(3)JD5, 15.3(3)JD6, 15.3(3)JD7, 15.3(3)JD8, 15.3(3)JD9, 15.3(3)JDA11, 15.3(3)JDA13, 15.3(3)JDA14, 15.3(3)JDA16, 15.3(3)JDA17, 15.3(3)JDA7, 15.3(3)JDA8, 15.3(3)JDA9, 15.3(3)JE, 15.3(3)JF, 15.3(3)JF1, 15.3(3)JF10, 15.3(3)JF11, 15.3(3)JF12, 15.3(3)JF12i, 15.3(3)JF14, 15.3(3)JF14i, 15.3(3)JF15, 15.3(3)JF2, 15.3(3)JF4, 15.3(3)JF5, 15.3(3)JF6, 15.3(3)JF7, 15.3(3)JF8, 15.3(3)JF9, 15.3(3)JG, 15.3(3)JG1, 15.3(3)JH, 15.3(3)JH1, 15.3(3)JI1, 15.3(3)JI3, 15.3(3)JI4, 15.3(3)JI5, 15.3(3)JI6, 15.3(3)JJ, 15.3(3)JJ1, 15.3(3)JK, 15.3(3)JK1, 15.3(3)JK10, 15.3(3)JK11, 15.3(3)JK1t, 15.3(3)JK2, 15.3(3)JK2a, 15.3(3)JK3, 15.3(3)JK4, 15.3(3)JK5, 15.3(3)JK6, 15.3(3)JK7, 15.3(3)JK8, 15.3(3)JK8a, 15.3(3)JK8b, 15.3(3)JK9, 15.3(3)JN3, 15.3(3)JN4, 15.3(3)JN7, 15.3(3)JN8, 15.3(3)JN9, 15.3(3)JNB, 15.3(3)JNB1, 15.3(3)JNB2, 15.3(3)JNB3, 15.3(3)JNB4, 15.3(3)JNB5, 15.3(3)JNB6, 15.3(3)JNC, 15.3(3)JNC1, 15.3(3)JNC4, 15.3(3)JND, 15.3(3)JND1, 15.3(3)JND2, 15.3(3)JND3, 15.3(3)JNP, 15.3(3)JNP1, 15.3(3)JNP3, 15.3(3)JPB, 15.3(3)JPB1, 15.3(3)JPC, 15.3(3)JPC1, 15.3(3)JPC2, 15.3(3)JPC3, 15.3(3)JPC5, 15.3(3)JPD, 15.3(3)JPI1, 15.3(3)JPI10, 15.3(3)JPI1t, 15.3(3)JPI4, 15.3(3)JPI5, 15.3(3)JPI6a, 15.3(3)JPI7, 15.3(3)JPI8a, 15.3(3)JPI9, 15.3(3)JPJ10, 15.3(3)JPJ11, 15.3(3)JPJ2, 15.3(3)JPJ2t, 15.3(3)JPJ3, 15.3(3)JPJ3a, 15.3(3)JPJ4, 15.3(3)JPJ5, 15.3(3)JPJ6, 15.3(3)JPJ7, 15.3(3)JPJ7c, 15.3(3)JPJ8a, 15.3(3)JPJ9, 15.3(3)JPK, 15.3(3)JPK1, 15.3(3)JPK2, 15.3(3)JPK3, 15.3(3)JPK4, 15.3(3)JPK5, 15.3(3)JPK6, 15.3(3)JPK7, 15.3(3)JPK8, 15.3(3)JPK9, 15.3(3)JPL, 15.3(3)JPM, 15.3(3)JPN, 15.3(3)JPN1, 15.3(3)JPN2, 15.3(3)JPN3, 15.3(3)JPN4, 15.3(3)JPN5, 15.3(3)JPN6, 15.3(3)JPN7, 15.3(3)JPO, 15.3(3)JPP, 15.3(3)JPQ, 15.3(3)JPQ1, 15.3(3)JPQ2, 15.3(3)JPQ3, 15.3(3)JPQ4, 15.3(3)JPQ5, 15.3(3)JPR, 15.3(3)JPS, 15.3(3)JPT, 15.3(3)JPT1, 15.3(3)JPT2, 15.3(3)JPT3, 15.3(3)M, 15.3(3)M1, 15.3(3)M10, 15.3(3)M2, 15.3(3)M3, 15.3(3)M4, 15.3(3)M5, 15.3(3)M6, 15.3(3)M7, 15.3(3)M8, 15.3(3)M8a, 15.3(3)M9, 15.3(3)S, 15.3(3)S1, 15.3(3)S10, 15.3(3)S1a, 15.3(3)S2, 15.3(3)S3, 15.3(3)S4, 15.3(3)S5, 15.3(3)S6, 15.3(3)S7, 15.3(3)S8, 15.3(3)S8a, 15.3(3)S9, 15.4(1)CG, 15.4(1)CG1, 15.4(1)S, 15.4(1)S1, 15.4(1)S2, 15.4(1)S3, 15.4(1)S4, 15.4(1)SY, 15.4(1)SY1, 15.4(1)SY2, 15.4(1)SY3, 15.4(1)SY4, 15.4(1)T, 15.4(1)T1, 15.4(1)T2, 15.4(1)T3, 15.4(1)T4, 15.4(2)CG, 15.4(2)S, 15.4(2)S1, 15.4(2)S2, 15.4(2)S3, 15.4(2)S4, 15.4(2)T, 15.4(2)T1, 15.4(2)T2, 15.4(2)T3, 15.4(2)T4, 15.4(3)S, 15.4(3)S1, 15.4(3)S10, 15.4(3)S2, 15.4(3)S3, 15.4(3)S4, 15.4(3)S5, 15.4(3)S6, 15.4(3)S6a, 15.4(3)S7, 15.4(3)S8, 15.4(3)S9, 15.5(1)S, 15.5(1)S1, 15.5(1)S2, 15.5(1)S3, 15.5(1)S4, 15.5(1)SY, 15.5(1)SY1, 15.5(1)SY10, 15.5(1)SY11, 15.5(1)SY12, 15.5(1)SY13, 15.5(1)SY14, 15.5(1)SY15, 15.5(1)SY16, 15.5(1)SY2, 15.5(1)SY3, 15.5(1)SY4, 15.5(1)SY5, 15.5(1)SY6, 15.5(1)SY7, 15.5(1)SY8, 15.5(1)SY9, 15.5(1)T, 15.5(1)T1, 15.5(1)T2, 15.5(1)T3, 15.5(1)T4, 15.5(2)S, 15.5(2)S1, 15.5(2)S2, 15.5(2)S3, 15.5(2)S4, 15.5(2)T, 15.5(2)T1, 15.5(2)T2, 15.5(2)T3, 15.5(2)T4, 15.5(3)M, 15.5(3)M0a, 15.5(3)M1, 15.5(3)M10, 15.5(3)M2, 15.5(3)M3, 15.5(3)M4, 15.5(3)M4a, 15.5(3)M5, 15.5(3)M6, 15.5(3)M6a, 15.5(3)M7, 15.5(3)M8, 15.5(3)M9, 15.5(3)S, 15.5(3)S0a, 15.5(3)S1, 15.5(3)S10, 15.5(3)S1a, 15.5(3)S2, 15.5(3)S3, 15.5(3)S4, 15.5(3)S5, 15.5(3)S6, 15.5(3)S6a, 15.5(3)S6b, 15.5(3)S7, 15.5(3)S8, 15.5(3)S9, 15.5(3)S9a, 15.5(3)SN, 15.6(1)S, 15.6(1)S1, 15.6(1)S2, 15.6(1)S3, 15.6(1)S4, 15.6(1)T, 15.6(1)T0a, 15.6(1)T1, 15.6(1)T2, 15.6(1)T3, 15.6(2)S, 15.6(2)S1, 15.6(2)S2, 15.6(2)S3, 15.6(2)S4, 15.6(2)SN, 15.6(2)SP, 15.6(2)SP1, 15.6(2)SP2, 15.6(2)SP3, 15.6(2)SP4, 15.6(2)SP5, 15.6(2)SP6, 15.6(2)SP7, 15.6(2)SP8, 15.6(2)SP9, 15.6(2)T, 15.6(2)T1, 15.6(2)T2, 15.6(2)T3, 15.6(3)M, 15.6(3)M0a, 15.6(3)M1, 15.6(3)M1b, 15.6(3)M2, 15.6(3)M2a, 15.6(3)M3, 15.6(3)M3a, 15.6(3)M4, 15.6(3)M5, 15.6(3)M6, 15.6(3)M6a, 15.6(3)M6b, 15.6(3)M7, 15.6(3)M8, 15.6(3)M9, 15.7(3)M, 15.7(3)M0a, 15.7(3)M1, 15.7(3)M2, 15.7(3)M3, 15.7(3)M4, 15.7(3)M4a, 15.7(3)M4b, 15.7(3)M5, 15.7(3)M6, 15.7(3)M7, 15.7(3)M8, 15.7(3)M9, 15.8(3)M, 15.8(3)M0a, 15.8(3)M0b, 15.8(3)M1, 15.8(3)M1a, 15.8(3)M2, 15.8(3)M2a, 15.8(3)M3, 15.8(3)M3a, 15.8(3)M3b, 15.8(3)M4, 15.8(3)M5, 15.8(3)M6, 15.8(3)M7, 15.8(3)M8, 15.8(3)M9, 15.9(3)M, 15.9(3)M0a, 15.9(3)M1, 15.9(3)M10, 15.9(3)M11, 15.9(3)M12, 15.9(3)M2, 15.9(3)M2a, 15.9(3)M3, 15.9(3)M3a, 15.9(3)M3b, 15.9(3)M4, 15.9(3)M4a, 15.9(3)M5, 15.9(3)M6, 15.9(3)M6a, 15.9(3)M6b, 15.9(3)M7, 15.9(3)M7a, 15.9(3)M8, 15.9(3)M8b, 15.9(3)M9CNA affected

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 7th percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

hashicorpvendor investigatingvia llm_extracted
infiniflowvendor investigatingvia llm_extracted
mandiantvendor investigatingvia llm_extracted

Vendor Advisories (3)

hashicorpllm-hashicorp-5084820f832b1e6cHIGH

Cisco IOS Software and IOS XE Software Release 3E HTTP Server Denial of Service Vulnerability

Mar 25, 2026
infiniflowllm-infiniflow-30ced5905c4cc328HIGH

Cisco IOS Software and IOS XE Software Release 3E HTTP Server Denial of Service Vulnerability

Mar 25, 2026
mandiantllm-mandiant-fab5c98a03c32a7aHIGH

Cisco IOS Software and IOS XE Software Release 3E HTTP Server Denial of Service Vulnerability

Mar 25, 2026

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-http-dos-sbv8XRpL