PatchTheCVECVE-2017-12379: ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticate
CVE-2017-12379 is a critical-severity flaw (CVSS 9.8) affecting debian linux, clamav. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms in the message parsing function on an affected system. An unauthenticated, remote attacker could exploit this vulnerability by sending a craf
Why this priority
- Critical severity
- EPSS top 4%: very likely to be exploited
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 12.5% (top 4%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2018-01-26 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: bugzilla.clamav.net/show_bug.cgi?id=11944
- Write-up: usn.ubuntu.com/3550-1/
- Write-up: usn.ubuntu.com/3550-2/
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-12379?
debian linux: mitigate or apply the listed mitigation; clamav: upgrade to newer than 0.99.2. Exact commands for each OS are on this page.
Is CVE-2017-12379 being exploited?
CVE-2017-12379 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-12379 affect?
CVE-2017-12379 affects debian linux, clamav. Severity is critical (CVSS 9.8). ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The v
How urgent is CVE-2017-12379?
Priority 76/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist
Software pages
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