Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2020-10180: The ESET AV parsing engine allows virus-detection bypass via a crafted BZ2 Checksum field in an archive

59
This month
CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2020-10180 is a critical-severity flaw (CVSS 9.8) affecting cyber security, mobile security, nod32 antivirus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ESET AV parsing engine allows virus-detection bypass via a crafted BZ2 Checksum field in an archive. This affects versions before 1294 of Smart Security Premium, Internet Security, NOD32 Antivirus, Cyber Security Pro (macOS), Cyber Security (macOS), Mobile Security for Android, Smart TV Security, and NOD32 Antivirus 4 for Linux Desktop.

Why this priority

  • Critical severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.7% (top 23%)
CISA exploited listNo
WeaknessCWE-436
Published2020-03-05
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: eset

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

eset cyber security UPGRADE
Affected: < 1294
Fixed in: 1294
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy cyber-security || rpm -q cyber-security || cyber-security --version
2. UPGRADE to 1294 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade cyber-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade cyber-security
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eset mobile security UPGRADE
Affected: < 1294
Fixed in: 1294
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy mobile-security || rpm -q mobile-security || mobile-security --version
2. UPGRADE to 1294 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade mobile-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade mobile-security
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eset nod32 antivirus UPGRADE
Affected: < 1294
Fixed in: 1294
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy nod32-antivirus || rpm -q nod32-antivirus || nod32-antivirus --version
2. UPGRADE to 1294 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade nod32-antivirus
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade nod32-antivirus
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eset nod32 antivirus DOWNGRADE
Affected: 4
Fixed in: no fixed release known
Safe to downgrade to: a release before 4
1. Check installed version
apt-cache policy nod32-antivirus || rpm -q nod32-antivirus || nod32-antivirus --version
2. No fixed release: DOWNGRADE to a release before 4 (Debian / Ubuntu)
apt-cache madison nod32-antivirus sudo apt install nod32-antivirus=<VERSION_BEFORE_4> sudo apt-mark hold nod32-antivirus
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list nod32-antivirus sudo dnf downgrade nod32-antivirus-<VERSION_BEFORE_4> sudo dnf versionlock add nod32-antivirus
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
eset smart security UPGRADE
Affected: < 1294
Fixed in: 1294
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy smart-security || rpm -q smart-security || smart-security --version
2. UPGRADE to 1294 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade smart-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade smart-security
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eset smart tv security UPGRADE
Affected: < 1294
Fixed in: 1294
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy smart-tv-security || rpm -q smart-tv-security || smart-tv-security --version
2. UPGRADE to 1294 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade smart-tv-security
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade smart-tv-security
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-2020-10180?

cyber security: upgrade to 1294; mobile security: upgrade to 1294; nod32 antivirus: upgrade to 1294. Exact commands for each OS are on this page.

Is CVE-2020-10180 being exploited?

CVE-2020-10180 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-2020-10180 affect?

CVE-2020-10180 affects cyber security, mobile security, nod32 antivirus. Severity is critical (CVSS 9.8). The ESET AV parsing engine allows virus-detection bypass via a crafted BZ2 Checksum field in an archive. This affects versions before 1294 of Smart Security Premium, Internet Security, NOD32 Antivirus, Cyber Security Pro (macOS), Cyber Secu

How urgent is CVE-2020-10180?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

Android vulnerabilities · macOS vulnerabilities · ESET vulnerabilities

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.