How severe is CVE-2009-1376?

CVE-2009-1376 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1376?

CVE-2009-1376 primarily affects Pidgin. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1376?

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-2009-1376 published?

CVE-2009-1376 was published on 2009-05-26 and last updated on 2026-06-16.

CVE-2009-1376

CVE-2009-1376 is a critical-severity vulnerability in Pidgin with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Pidgin
Published: 2009-05-26
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2009-1376?: 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.
How severe is CVE-2009-1376?: CVE-2009-1376 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1376?: CVE-2009-1376 primarily affects Pidgin. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1376?: 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-2009-1376 published?: CVE-2009-1376 was published on 2009-05-26 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.0:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.1:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.2:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.4.3:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.0:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.2:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.3:32_bit:*:*:*:*:*:*
cpe:2.3:a:pidgin:pidgin:2.5.4:32_bit:*:*:*:*:*:*

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