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CVE-2025-20173

22
FAUCET Score

CVE-2025-20173 is a denial-of-service vulnerability in the SNMP subsystem of Cisco IOS Software and Cisco IOS XE Software, stemming from improper error handling of crafted SNMP requests. It carries a CVSS score of 7.7 (High), indicating a network-based attack with low complexity and authenticated access required, leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
12.2\(33\)sreCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre:*:*:*:*:*:*:*
12.2\(33\)sre0aCPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre0a:*:*:*:*:*:*:*
12.2\(33\)sre1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre1:*:*:*:*:*:*:*
12.2\(33\)sre2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre2:*:*:*:*:*:*:*
12.2\(33\)sre3CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2\(33\)sre3:*:*:*:*:*:*:*

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
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 43rd percentile among its peer group of 17,844 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

No media coverage found for this CVE.

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 (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-dos-sdxnSUcW
Vendor Advisory