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Fencer Vulns
critical 9.3

CVE-2007-4286 in the critical feed json

Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a…

published 2007-08-09 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-4269

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
19.4%
EPSS 19.4% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Buffer overflow in the Next Hop Resolution Protocol (NHRP) functionality in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (restart) and execute arbitrary code via a crafted NHRP packet.

Timeline

  1. First public exploit (EDB-4272)
  2. Published

Exploit prediction

19.41% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-4272 Cisco IOS Next Hop Resolution Protocol (NHRP) - Denial of Service dos, 2007-08-09
  • securityfocus.com http://www.securityfocus.com/bid/25238 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.