How severe is CVE-2004-2026?

CVE-2004-2026 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2004-2026 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-2026?

CVE-2004-2026 primarily affects Apsis Pound. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-2026?

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

When was CVE-2004-2026 published?

CVE-2004-2026 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-2026

CVE-2004-2026 is a high-severity vulnerability in Apsis Pound with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apsis Pound
Published: 2004-12-31
Last modified: 2026-06-16

Description

Format string vulnerability in the logmsg function in svc.c for Pound 1.5 and earlier allows remote attackers to execute arbitrary code via format string specifiers in syslog messages.

Frequently asked questions

What is CVE-2004-2026?: Format string vulnerability in the logmsg function in svc.c for Pound 1.5 and earlier allows remote attackers to execute arbitrary code via format string specifiers in syslog messages.
How severe is CVE-2004-2026?: CVE-2004-2026 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-2026 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-2026?: CVE-2004-2026 primarily affects Apsis Pound. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-2026?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2004-2026 published?: CVE-2004-2026 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:apsis:pound:1.0:*:*:*:*:*:*:*
cpe:2.3:a:apsis:pound:1.1:*:*:*:*:*:*:*
cpe:2.3:a:apsis:pound:1.2:*:*:*:*:*:*:*
cpe:2.3:a:apsis:pound:1.3:*:*:*:*:*:*:*
cpe:2.3:a:apsis:pound:1.4:*:*:*:*:*:*:*
cpe:2.3:a:apsis:pound:1.5:*:*:*:*:*:*:*

More vulnerabilities in Apsis Pound

CVE-2016-10711 — Critical (CVSS 9.8): Apsis Pound before 2.8a allows request smuggling via crafted headers, a different vulnerability than CVE-2005-3751.
CVE-2018-21245 — Critical (CVSS 9.1): Pound before 2.8 allows HTTP request smuggling, a related issue to CVE-2016-10711.
CVE-2005-1391 — High (CVSS 7.5): Buffer overflow in the add_port function in APSIS Pound 1.8.2 and earlier allows remote attackers to execute arbitrary…
CVE-2005-3751 — Medium (CVSS 4.3): HTTP request smuggling vulnerability in Pound before 1.9.4 allows remote attackers to poison web caches, bypass web…

All CVEs affecting Apsis Pound →