CVE-2021-45907
An issue was discovered in gif2apng 1.9. There is a stack-based buffer overflow involving a for...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-45907- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-45907- Updated
- 2026-11-02
EUVDEUVD-2021-32622 No score
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.
- Record
EUVD-2021-32622- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qq53-cmvg-m7m7 No score
An issue was discovered in gif2apng 1.9. There is a stack-based buffer overflow involving a for...
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.
- Record
GHSA-qq53-cmvg-m7m7- Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-45907- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-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.
- Record
DEBIAN-CVE-2021-45907- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-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.
- Record
UBUNTU-CVE-2021-45907- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
gif2apngDebian:11 |
All versions, plus listed versions 1.9+srconly-31.9+srconly-3+deb11u1 |
None known |
gif2apngUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 1.7-31.7-3ubuntu0.1~esm1 |
None known |
gif2apngUbuntu:18.04:LTS |
All versions, plus listed versions 1.9+srconly-21.9+srconly-2ubuntu0.1 |
None known |
gif2apngUbuntu:20.04:LTS |
All versions, plus listed versions 1.9+srconly-31.9+srconly-3build11.9+srconly-3ubuntu0.1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-45907 is a high vulnerability (CVSS 7.8) in Gif2apng Project Gif2apng, published December 28, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. No source names a fixed version.