How severe is CVE-2009-5063?

CVE-2009-5063 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-5063 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-5063?

CVE-2009-5063 primarily affects Libpng. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-5063?

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

When was CVE-2009-5063 published?

CVE-2009-5063 was published on 2011-08-31 and last updated on 2026-06-16.

CVE-2009-5063

CVE-2009-5063 is a medium-severity vulnerability in Libpng with a CVSS 2.0 base score of 5.0. 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-401.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Libpng
Published: 2011-08-31
Last modified: 2026-06-16

Description

Memory leak in the embedded_profile_len function in pngwutil.c in libpng before 1.2.39beta5 allows context-dependent attackers to cause a denial of service (memory leak or segmentation fault) via a JPEG image containing an iCCP chunk with a negative embedded profile length. NOTE: this is due to an incomplete fix for CVE-2006-7244.

Frequently asked questions

What is CVE-2009-5063?: Memory leak in the embedded_profile_len function in pngwutil.c in libpng before 1.2.39beta5 allows context-dependent attackers to cause a denial of service (memory leak or segmentation fault) via a JPEG image containing an iCCP chunk with a negative embedded profile length. NOTE: this is due to an incomplete fix for CVE-2006-7244.
How severe is CVE-2009-5063?: CVE-2009-5063 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-5063 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-5063?: CVE-2009-5063 primarily affects Libpng. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-5063?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-5063 published?: CVE-2009-5063 was published on 2011-08-31 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
cpe:2.3:a:libpng:libpng:1.2.39:-:*:*:*:*:*:*
cpe:2.3:a:libpng:libpng:1.2.39:beta1:*:*:*:*:*:*
cpe:2.3:a:libpng:libpng:1.2.39:beta2:*:*:*:*:*:*
cpe:2.3:a:libpng:libpng:1.2.39:beta3:*:*:*:*:*:*
cpe:2.3:a:libpng:libpng:1.2.39:beta4:*:*:*:*:*:*

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