How severe is CVE-2016-5735?

CVE-2016-5735 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-5735 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5735?

CVE-2016-5735 affects Pngquant. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5735?

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-2016-5735 published?

CVE-2016-5735 was published on 2017-05-23 and last updated on 2026-06-17.

CVE-2016-5735

CVE-2016-5735 is a high-severity vulnerability in Pngquant with a CVSS 3.x base score of 7.8. 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Pngquant
Published: 2017-05-23
Last modified: 2026-06-17

Description

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

Frequently asked questions

What is CVE-2016-5735?: Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.
How severe is CVE-2016-5735?: CVE-2016-5735 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-5735 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5735?: CVE-2016-5735 affects Pngquant. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5735?: 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-2016-5735 published?: CVE-2016-5735 was published on 2017-05-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pngquant:pngquant:2.7.0:*:*:*:*:*:*:*

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