CVE-2026-5966: ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability

Q: How do I fix CVE-2026-5966?

threatsonar anti-ransomware: upgrade to 4.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-5966 being exploited?

CVE-2026-5966 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-5966 affect?

CVE-2026-5966 affects threatsonar anti-ransomware. Severity is high (CVSS 8.1). ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability. Authenticated remote attackers with web access can exploit Path Traversal to delete arbitrary files on the system.

Routine

HIGH 8.1UPGRADE

CVE-2026-5966 is a high-severity flaw (CVSS 8.1) affecting threatsonar anti-ransomware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability. Authenticated remote attackers with web access can exploit Path Traversal to delete arbitrary files on the system.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-23, CWE-22
Published	2026-04-20
Last modified	2026-10-26

Publisher (CNA): TWCERT/CC · Vendor: teamt5

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-20 08:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

teamt5 threatsonar anti-ransomware UPGRADE

Affected: < 4.0.0

Fixed in: 4.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy threatsonar-anti-ransomware || rpm -q threatsonar-anti-ransomware || threatsonar-anti-ransomware --version

2. UPGRADE to 4.0.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade threatsonar-anti-ransomware

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade threatsonar-anti-ransomware

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2026-5966?

threatsonar anti-ransomware: upgrade to 4.0.0. Exact commands for each OS are on this page.

Is CVE-2026-5966 being exploited?

CVE-2026-5966 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-2026-5966 affect?

CVE-2026-5966 affects threatsonar anti-ransomware. Severity is high (CVSS 8.1). ThreatSonar Anti-Ransomware developed by TeamT5 has an Arbitrary File Deletion vulnerability. Authenticated remote attackers with web access can exploit Path Traversal to delete arbitrary files on the system.

How urgent is CVE-2026-5966?

Priority 37/100. High severity

Related CVEs

CVE-2026-5967 HIGH 8.8 UPGRADE ThreatSonar Anti-Ransomware developed by TeamT5 has an Privilege Escalation vulnerability

References

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