CVE-2023-40857
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute...
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- 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
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
CVE-2023-40857- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
CVE-2023-40857- Updated
- 2026-11-02
EUVDEUVD-2023-45397 No score
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
EUVD-2023-45397- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wr74-v8h4-7w2f
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute...
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
GHSA-wr74-v8h4-7w2f- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-40857
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
UBUNTU-CVE-2023-40857- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV No score
Buffer Overflow vulnerability in VirusTotal yara v.4.3.2 allows a remote attacker to execute arbtirary code via the yr_execute_cod function in the exe.c component.
- Record
CVE-2023-40857- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
yaraUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 3.4.0+dfsg-23.4.0+dfsg-2build13.4.0+dfsg-2ubuntu0.1~esm1 |
None known |
yaraUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 3.6.3+dfsg-1ubuntu13.7.1-1ubuntu13.7.1-1ubuntu23.7.1-1ubuntu2+esm1 |
None known |
yaraUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 3.9.0-13.9.0-1ubuntu0.1~esm1 |
None known |
yaraUbuntu:22.04:LTS |
All versions, plus listed versions 4.1.0-14.1.3-14.1.3-1build1 |
None known |
yaraUbuntu:24.04:LTS |
All versions, plus listed versions 4.3.2-14.4.0-14.5.0-14.5.0-1build14.5.0-1build2 |
None known |
yaraUbuntu:25.10 |
All versions, plus listed versions 4.5.2-14.5.3-14.5.4-1 |
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-2023-40857 is a high vulnerability (CVSS 8.8) in Virustotal Yara, published August 28, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. No source names a fixed version.