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CVE-2024-30401

19
FAUCET Score

CVE-2024-30401 is an Out-of-bounds Read vulnerability in the advanced forwarding management process (aftman) of Juniper Networks Junos OS, specifically affecting MX Series with MPC10E, MPC11, MX10K-LC9600 line cards, MX304, and EX9200-15C. This flaw, stemming from an interface definition code error, can lead to a stack-based buffer overflow and subsequently cause a reboot of the FPC. With a CVSS score of 5.9 (Medium), this vulnerability can be exploited remotely with high attack complexity, resulting in a denial of service. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
21.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
21.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
21.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
21.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
21.2CPE matchmatch criteria
cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.2HIGH

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 7th percentile among its peer group of 19,956 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

supportportal.juniper.net / JSA79110
Vendor Advisory
first.org / cvss/calculator/4.0
Vendor Advisory