How severe is CVE-2020-23922?

CVE-2020-23922 has a CVSS 3.x base score of 7.1, 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 none, and availability high.

Is CVE-2020-23922 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-23922?

CVE-2020-23922 primarily affects Giflib Project Giflib. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-23922?

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-2020-23922 published?

CVE-2020-23922 was published on 2021-04-21 and last updated on 2026-06-17.

CVE-2020-23922

CVE-2020-23922 is a high-severity vulnerability in Giflib Project Giflib with a CVSS 3.x base score of 7.1. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.8
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Giflib Project Giflib
Published: 2021-04-21
Last modified: 2026-06-17

Description

An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read.

Frequently asked questions

What is CVE-2020-23922?: An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read.
How severe is CVE-2020-23922?: CVE-2020-23922 has a CVSS 3.x base score of 7.1, 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 none, and availability high.
Is CVE-2020-23922 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-23922?: CVE-2020-23922 primarily affects Giflib Project Giflib. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-23922?: 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-2020-23922 published?: CVE-2020-23922 was published on 2021-04-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:giflib_project:giflib:*:*:*:*:*:*:*:*
cpe:2.3:a:apache:bookkeeper:4.12.1:*:*:*:*:*:*:*

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