How severe is CVE-2009-2624?

CVE-2009-2624 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2009-2624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2624?

CVE-2009-2624 primarily affects Gnu Gzip. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2624?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-2624 published?

CVE-2009-2624 was published on 2010-01-29 and last updated on 2026-06-16.

CVE-2009-2624

CVE-2009-2624 is a medium-severity vulnerability in Gnu Gzip with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Gnu Gzip
Published: 2010-01-29
Last modified: 2026-06-16

Description

The huft_build function in inflate.c in gzip before 1.3.13 creates a hufts (aka huffman) table that is too small, which allows remote attackers to cause a denial of service (application crash or infinite loop) or possibly execute arbitrary code via a crafted archive. NOTE: this issue is caused by a CVE-2006-4334 regression.

Frequently asked questions

What is CVE-2009-2624?: The huft_build function in inflate.c in gzip before 1.3.13 creates a hufts (aka huffman) table that is too small, which allows remote attackers to cause a denial of service (application crash or infinite loop) or possibly execute arbitrary code via a crafted archive. NOTE: this issue is caused by a CVE-2006-4334 regression.
How severe is CVE-2009-2624?: CVE-2009-2624 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2009-2624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2624?: CVE-2009-2624 primarily affects Gnu Gzip. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2624?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2624 published?: CVE-2009-2624 was published on 2010-01-29 and last updated on 2026-06-16.

References

Affected products (15)

cpe:2.3:a:gnu:gzip:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.2.4a:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.4:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.5:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.6:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.7:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.8:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.9:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.10:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gzip:1.3.11:*:*:*:*:*:*:*

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