CVE-2018-8955 json
The installer for BitDefender GravityZone relies on an encoded string in a filename to determine the URL for installation metadata, which a…
published 2018-10-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20562
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.3%
- EPSS 4.3% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
The installer for BitDefender GravityZone relies on an encoded string in a filename to determine the URL for installation metadata, which allows remote attackers to execute arbitrary code by changing the filename while leaving the file's digital signature unchanged.
Exploit prediction
4.26% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- labs.nettitude.com https://labs.nettitude.com/blog/cve-2018-8955-bitdefender-gravityzone-arbitrary-code-execution/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
labs.nettitude.com
/blog/cve-2018-8955-bitdefender-gravityzone-arbitrary-code-execution/
exploit, third-party-advisory
-
packetstormsecurity.com
/files/149900/Bitdefender-GravityZone-Installer-Signature-Bypass-Code-Execution.html
third-party-advisory, vdb-entry
-
seclists.org
/fulldisclosure/2018/Oct/44
mailing-list, third-party-advisory
-
securitytracker.com
/id/1041940
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2018-8955
- NVD CVE-2018-8955
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.