How severe is CVE-2020-19752?

CVE-2020-19752 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-19752 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-19752?

CVE-2020-19752 primarily affects Lcdf Gifsicle. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-19752?

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-2020-19752 published?

CVE-2020-19752 was published on 2021-09-07 and last updated on 2026-06-17.

CVE-2020-19752

CVE-2020-19752 is a high-severity vulnerability in Lcdf Gifsicle with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Lcdf Gifsicle
Published: 2021-09-07
Last modified: 2026-06-17

Description

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Frequently asked questions

What is CVE-2020-19752?: The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.
How severe is CVE-2020-19752?: CVE-2020-19752 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-19752 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-19752?: CVE-2020-19752 primarily affects Lcdf Gifsicle. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-19752?: 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-2020-19752 published?: CVE-2020-19752 was published on 2021-09-07 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:lcdf:gifsicle:1.92:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

More vulnerabilities in Lcdf Gifsicle

CVE-2017-1000421 — Critical (CVSS 9.8): Gifsicle gifview 1.89 and older is vulnerable to a use-after-free in the read_gif function resulting potential code…
CVE-2023-46009 — High (CVSS 7.8): gifsicle-1.94 was found to have a floating point exception (FPE) vulnerability via resize_stream at src/xform.c.
CVE-2023-36193 — High (CVSS 7.8): Gifsicle v1.9.3 was discovered to contain a heap buffer overflow via the ambiguity_error component at /src/clp.c.
CVE-2017-18120 — High (CVSS 7.8): A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a…
CVE-2023-44821 — Medium (CVSS 5.5): Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a…

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