SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2012-2131

Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data,…

EXPLOIT ✓HIGH 7.5EPSS 16.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.8%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Multiple integer signedness errors in crypto/buffer/buffer.c in OpenSSL 0.9.8v allow remote attackers to conduct buffer overflow attacks, and cause a denial of service (memory corruption) or possibly have unspecified other impact, via crafted DER data, as demonstrated by an X.509 certificate or an RSA public key. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-2110.

CVSS 2.0
7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
16.82% probability · 97th percentile
Public exploits
1 in Exploit-DB · verified · first 19 April 2012
CISA KEV
Not listed
Weakness
CWE-189
Affected
openssl/openssl
Source
secalert@redhat.com
EPSS trend
0%10%20%26 October 2026: 16.82%26 October 202626 October 2026

EPSS 16.8% 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-18756source ↗OpenSSL - ASN1 BIO Memory Corruptionmultiple · Tavis Ormandydos19 April 2012yes

References

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