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CVE-2007-4286

43
FAUCET Score

CVE-2007-4286 is a critical buffer overflow vulnerability affecting Cisco IOS versions 12.0 through 12.4, specifically within its Next Hop Resolution Protocol (NHRP) functionality. With a CVSS score of 9.3, this vulnerability allows unauthenticated remote attackers to trigger a denial of service (device restart) and potentially execute arbitrary code through a specially crafted NHRP packet. While not listed in CISA's KEV catalog, an exploit for denial of service is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
12.0CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*
12.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:*
12.2CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
12.3CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.3:*:*:*:*:*:*:*
12.4CPE matchmatch criteria
cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
19.41%
Probability of exploitation in next 30 days
EPSS Percentile
97.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-4272 · Aug 9, 2007
This CVE's current EPSS score of 0.1941 is in the 85th percentile among its peer group of 8,913 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/26360
exchange.xforce.ibmcloud.com / vulnerabilities/35889
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5675
cisco.com / en/US/products/products_security_advisory09186a008089963b.shtml
kb.cert.org / vuls/id/201984
US Government Resource
securityfocus.com / archive/1/475931/100/0/threaded
securityfocus.com / bid/25238
Exploit
securitytracker.com / id
vupen.com / english/advisories/2007/2818