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CVE-2020-24614: Fossil before 2.10.2, 2.11.x before 2.11.2, and 2.12.x before 2.12.1 allows remote authenticated users to exec

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This month
HIGH 8.8UPGRADEMITIGATEDOWNGRADE

CVE-2020-24614 is a high-severity flaw (CVSS 8.8) affecting fossil, fedora, backports sle. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Fossil before 2.10.2, 2.11.x before 2.11.2, and 2.12.x before 2.12.1 allows remote authenticated users to execute arbitrary code. An attacker must have check-in privileges on the repository.

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance3.1% (top 12%)
CISA exploited listNo
WeaknessCWE-862
Published2020-08-25
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: fedoraproject · fossil-scm · opensuse

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

Am I affected?

Timeline

fossil-scm fossil UPGRADE
Affected: < 2.10.2 · >= 2.11.0 and < 2.11.2 · >= 2.12.0 and < 2.12.1
Fixed in: 2.10.2, 2.11.2, 2.12.1
Safe to downgrade to: a release before 2.11.0
1. Check installed version
apt-cache policy fossil || rpm -q fossil || fossil --version
2. UPGRADE to 2.10.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade fossil
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade fossil
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 2.11.0 (Debian / Ubuntu)
apt-cache madison fossil sudo apt install fossil=<VERSION_BEFORE_2.11.0> sudo apt-mark hold fossil
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list fossil sudo dnf downgrade fossil-<VERSION_BEFORE_2.11.0> sudo dnf versionlock add fossil
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.
fedoraproject fedora MITIGATE
Affected: 32 · 33
Fixed in: no fixed release known
Safe to downgrade to: a release before 32
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
opensuse backports sle DOWNGRADE
Affected: 15.0 sp1 · 15.0 sp2
Fixed in: no fixed release known
Safe to downgrade to: a release before 15.0
1. Check installed version
apt-cache policy backports-sle || rpm -q backports-sle || backports-sle --version
2. No fixed release: DOWNGRADE to a release before 15.0 (Debian / Ubuntu)
apt-cache madison backports-sle sudo apt install backports-sle=<VERSION_BEFORE_15.0> sudo apt-mark hold backports-sle
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list backports-sle sudo dnf downgrade backports-sle-<VERSION_BEFORE_15.0> sudo dnf versionlock add backports-sle
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.
opensuse leap MITIGATE
Affected: 15.1 · 15.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 15.1
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
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-2020-24614?

fossil: upgrade to 2.10.2, 2.11.2, 2.12.1; fedora: mitigate or apply the listed mitigation; backports sle: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-24614 being exploited?

CVE-2020-24614 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-2020-24614 affect?

CVE-2020-24614 affects fossil, fedora, backports sle. Severity is high (CVSS 8.8). Fossil before 2.10.2, 2.11.x before 2.11.2, and 2.12.x before 2.12.1 allows remote authenticated users to execute arbitrary code. An attacker must have check-in privileges on the repository.

How urgent is CVE-2020-24614?

Priority 53/100. High severity

Related CVEs

References

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