CVE-2021-45907
CVE-2021-45907 is a high-severity vulnerability in Gif2apng Project Gif2apng 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Gif2apng Project Gif2apng
- Published:
- Last modified:
Description
An issue was discovered in gif2apng 1.9. There is a stack-based buffer overflow involving a for loop. An attacker has little influence over the data written to the stack, making it unlikely that the flow of control can be subverted.
Frequently asked questions
- What is CVE-2021-45907?
- An issue was discovered in gif2apng 1.9. There is a stack-based buffer overflow involving a for loop. An attacker has little influence over the data written to the stack, making it unlikely that the flow of control can be subverted.
- How severe is CVE-2021-45907?
- CVE-2021-45907 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-2021-45907 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-45907?
- CVE-2021-45907 affects Gif2apng Project Gif2apng. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-45907?
- 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-2021-45907 published?
- CVE-2021-45907 was published on 2021-12-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:gif2apng_project:gif2apng:1.9:*:*:*:*:*:*:*
More vulnerabilities in Gif2apng Project Gif2apng
- CVE-2021-45911 — High (CVSS 7.8): An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow in the main function. It allows an…
- CVE-2021-45910 — High (CVSS 7.8): An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow within the main function. It allows an…
- CVE-2021-45909 — High (CVSS 7.8): An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function.…
- CVE-2021-45908 — High (CVSS 7.8): An issue was discovered in gif2apng 1.9. There is a stack-based buffer overflow involving a while loop. An attacker has…
All CVEs affecting Gif2apng Project Gif2apng →
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