How severe is CVE-2009-2694?

CVE-2009-2694 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-2694 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2694?

CVE-2009-2694 primarily affects Adium. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2694?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-2694 published?

CVE-2009-2694 was published on 2009-08-21 and last updated on 2026-06-16.

CVE-2009-2694

CVE-2009-2694 is a critical-severity vulnerability in Adium with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Adium
Published: 2009-08-21
Last modified: 2026-06-16

Description

The msn_slplink_process_msg function in libpurple/protocols/msn/slplink.c in libpurple, as used in Pidgin (formerly Gaim) before 2.5.9 and Adium 1.3.5 and earlier, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) by sending multiple crafted SLP (aka MSNSLP) messages to trigger an overwrite of an arbitrary memory location. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-1376.

Frequently asked questions

What is CVE-2009-2694?: The msn_slplink_process_msg function in libpurple/protocols/msn/slplink.c in libpurple, as used in Pidgin (formerly Gaim) before 2.5.9 and Adium 1.3.5 and earlier, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) by sending multiple crafted SLP (aka MSNSLP) messages to trigger an overwrite of an arbitrary memory location. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-1376.
How severe is CVE-2009-2694?: CVE-2009-2694 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-2694 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2694?: CVE-2009-2694 primarily affects Adium. In total, 29 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2694?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-2694 published?: CVE-2009-2694 was published on 2009-08-21 and last updated on 2026-06-16.

References

Affected products (29)

cpe:2.3:a:adium:adium:*:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.2.7:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.3:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:adium:adium:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.3.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.3.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.2:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.3:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.3:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.6:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:*

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