CVE-2007-4286

Exp

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.

Published: 2007-08-09 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-4286 is rated High Exploit Risk (87.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 63.38%, 98th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2007-4286

EDB-ID Source Kind Published Link
4272 exploit_db edb 2007-08-09 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2007-4286

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-28 62.64% 63.38% +0.74%
2 2025-03-30 59.35% 62.64% +3.29%
3 2025-03-29 — 59.35% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-4286

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2007-4286

Affected software / configurations for CVE-2007-4286

Vendor Product Version Raw CPE
cisco ios 12.0 cpe:2.3:o:cisco:ios:12.0:*:*:*:*:*:*:*
cisco ios 12.1 cpe:2.3:o:cisco:ios:12.1:*:*:*:*:*:*:*
cisco ios 12.2 cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*
cisco ios 12.3 cpe:2.3:o:cisco:ios:12.3:*:*:*:*:*:*:*
cisco ios 12.4 cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*

References for CVE-2007-4286

cvelogic Threat Intelligence