SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-1547

Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other…

EXPLOIT ✓MEDIUM 6.8EPSS 5.08%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 5.1%. Treat it as high on anything reachable from the internet.

Description

Multiple stack consumption vulnerabilities in the kernel in NetBSD 4.0, 5.0 before 5.0.3, and 5.1 before 5.1.1, when IPsec is enabled, allow remote attackers to cause a denial of service (memory corruption and panic) or possibly have unspecified other impact via a crafted (1) IPv4 or (2) IPv6 packet with nested IPComp headers.

CVSS 2.0
6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
5.08% probability · 92th percentile
Public exploits
1 in Exploit-DB · verified · first 1 April 2011
CISA KEV
Not listed
Weakness
CWE-119
Affected
netbsd/netbsd
Source
cve@mitre.org
EPSS trend
0%5%10%26 October 2026: 5.08%26 October 202626 October 2026

EPSS 5.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-17097source ↗IPComp - encapsulation Kernel Memory Corruptionbsd · Tavis Ormandydos1 April 2011yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.