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.
Conclusion & alert: CVE-2012-2131 is rated High Exploit Risk (83.8/100): CVSS High severity, with high exploitation likelihood (EPSS 17.00%, 97th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +9.14% over the last day, indicating growing attacker interest. Mandatory action: 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.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 18756 | exploit_db | edb | 2012-04-19 | Exploit-DB ↗ |
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 | 2026-06-15 | 7.86% | 17.00% | +9.14% |
| 2 | 2026-03-16 | 7.42% | 7.86% | +0.44% |
| 3 | 2025-12-28 | — | 7.42% | — |
Full EPSS history (20 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2012-2131 unimportant priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-2131 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2012-2131 |
suse
|
medium | CVE-2012-2131 severity moderate: SUSE including 29 source package names (compat-openssl098, libopenssl-devel-0.9.8j-0.70.1, …), 37 product×package rows across 12 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (12 product lines)): Fixed 28, Known Not Affected 9. | https://www.suse.com/security/cve/CVE-2012-2131/ |
ubuntu
|
medium | CVE-2012-2131 medium priority: Ubuntu including 2 source packages (openssl, openssl098), 10 status rows across 5 suites (hardy, lucid, natty, oneiric, upstream): released 6, DNE 3, not-affected 1. | https://ubuntu.com/security/CVE-2012-2131 |