Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1) libpurple/protocols/msn/slplink.c and (2) libpurple/protocols/msnp9/slplink.c in Pidgin (formerly Gaim) before 2.5.6 on 32-bit platforms allow remote attackers to execute arbitrary code via a malformed SLP message with a crafted offset value, leading to buffer overflows. NOTE: this issue exists because of an incomplete fix for CVE-2008-2927.
Conclusion & alert: CVE-2009-1376 is rated High Exploit Risk (80.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 13.29%, 96th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). 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 |
|---|---|---|---|---|
| 9615 | exploit_db | edb | 2009-09-09 | 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 | 25.89% | 13.29% | -12.59% |
| 2 | 2025-06-11 | 24.02% | 25.89% | +1.86% |
| 3 | 2025-04-10 | — | 24.02% | — |
Full EPSS history (18 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2009-1376 not yet assigned priority: Debian including 1 source packages (pidgin), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-1376 |
gentoo
|
high | CVE-2009-1376: 2 GLSA(s) (200905-07, 200910-02), 1 atom(s) (net-im/pidgin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1376 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2009-1376 |
ubuntu
|
medium | CVE-2009-1376 medium priority: Ubuntu including 2 source packages (gaim, pidgin), 12 status rows across 7 suites (dapper, feisty, gutsy, hardy, intrepid, jaunty, upstream): DNE 6, released 6. | https://ubuntu.com/security/CVE-2009-1376 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| pidgin | pidgin | <= 2.5.5 | cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.0 | cpe:2.3:a:pidgin:pidgin:2.4.0:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.1 | cpe:2.3:a:pidgin:pidgin:2.4.1:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.2 | cpe:2.3:a:pidgin:pidgin:2.4.2:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.3 | cpe:2.3:a:pidgin:pidgin:2.4.3:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.0 | cpe:2.3:a:pidgin:pidgin:2.5.0:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.2 | cpe:2.3:a:pidgin:pidgin:2.5.2:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.3 | cpe:2.3:a:pidgin:pidgin:2.5.3:32_bit:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.4 | cpe:2.3:a:pidgin:pidgin:2.5.4:32_bit:*:*:*:*:*:* |