slp.c in the MSN protocol plugin in libpurple in Pidgin before 2.6.6, including 2.6.4, and Adium 1.3.8 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a malformed MSNSLP INVITE request in an SLP message, a different issue than CVE-2010-0013.
Conclusion & alert: CVE-2010-0277 is rated Moderate Risk (43.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.31%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 8.80% | 2.31% | -6.49% |
| 2 | 2025-03-30 | 15.45% | 8.80% | -6.64% |
| 3 | 2025-03-29 | — | 15.45% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2010-0277 low 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-2010-0277 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2010-0277 |
ubuntu
|
medium | CVE-2010-0277 medium priority: Ubuntu including 1 source packages (pidgin), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): released 5, DNE 1. | https://ubuntu.com/security/CVE-2010-0277 |
This issue was addressed for Red Hat Enterprise Linux 4 and 5 via https://rhn.redhat.com/errata/RHSA-2010-0115.html We currently have no plans to fix this flaw in Red Hat Enterprise Linux 3 as the MSN protocol support in the provided version of Pidgin (1.5.1) is out-dated and no longer supported by MSN servers. There are no plans to backport MSN protocol changes for that version of Pidgin.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| adium | adium | 1.3.8 | cpe:2.3:a:adium:adium:1.3.8:*:*:*:*:*:*:* |
| pidgin | pidgin | <= 2.6.5 | cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.0.0 | cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.0.1 | cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.0.2 | cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.1.0 | cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.1.1 | cpe:2.3:a:pidgin:pidgin:2.1.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.2.0 | cpe:2.3:a:pidgin:pidgin:2.2.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.2.1 | cpe:2.3:a:pidgin:pidgin:2.2.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.2.2 | cpe:2.3:a:pidgin:pidgin:2.2.2:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.3.0 | cpe:2.3:a:pidgin:pidgin:2.3.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.3.1 | cpe:2.3:a:pidgin:pidgin:2.3.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.0 | cpe:2.3:a:pidgin:pidgin:2.4.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.1 | cpe:2.3:a:pidgin:pidgin:2.4.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.2 | cpe:2.3:a:pidgin:pidgin:2.4.2:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.4.3 | cpe:2.3:a:pidgin:pidgin:2.4.3:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.0 | cpe:2.3:a:pidgin:pidgin:2.5.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.1 | cpe:2.3:a:pidgin:pidgin:2.5.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.2 | cpe:2.3:a:pidgin:pidgin:2.5.2:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.3 | cpe:2.3:a:pidgin:pidgin:2.5.3:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.4 | cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.5 | cpe:2.3:a:pidgin:pidgin:2.5.5:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.6 | cpe:2.3:a:pidgin:pidgin:2.5.6:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.7 | cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.8 | cpe:2.3:a:pidgin:pidgin:2.5.8:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.5.9 | cpe:2.3:a:pidgin:pidgin:2.5.9:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.6.0 | cpe:2.3:a:pidgin:pidgin:2.6.0:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.6.1 | cpe:2.3:a:pidgin:pidgin:2.6.1:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.6.2 | cpe:2.3:a:pidgin:pidgin:2.6.2:*:*:*:*:*:*:* |
| pidgin | pidgin | 2.6.4 | cpe:2.3:a:pidgin:pidgin:2.6.4:*:*:*:*:*:*:* |