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CVE-2013-4631

30
FAUCET Score

CVE-2013-4631 describes a denial-of-service vulnerability in Huawei AR series routers (150, 200, 1200, 2200, and 3200) when SNMPv3 is enabled. Remote attackers can crash affected devices by sending malformed SNMPv3 requests, leveraging unspecified overflow issues (CWE-119). This vulnerability has a CVSS score of 7.8, indicating high severity due to its network-based attack vector, low attack complexity, and complete availability impact. While not actively exploited in the wild or on the CISA KEV catalog, a proof-of-concept exploit exists on ExploitDB, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
v200r001CPE matchmatch criteria
cpe:2.3:h:huawei:ar_1200:v200r001:*:*:*:*:*:*:*
v200r002CPE matchmatch criteria
cpe:2.3:h:huawei:ar_1200:v200r002:*:*:*:*:*:*:*
v200r003CPE matchmatch criteria
cpe:2.3:h:huawei:ar_1200:v200r003:*:*:*:*:*:*:*
v200r001CPE matchmatch criteria
cpe:2.3:h:huawei:ar_150:v200r001:*:*:*:*:*:*:*
v200r002CPE matchmatch criteria
cpe:2.3:h:huawei:ar_150:v200r002:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.82%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-25295 · May 7, 2013
This CVE's current EPSS score of 0.0382 is in the 80th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

huawei.com / en/security/psirt/security-bulletins/security-advisories/hw-260601.htm
Vendor Advisory