CVE-2012-0051: Tahoe-LAFS 1.9.0 fails to ensure integrity which allows remote attackers to corrupt mutable files or directori

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HIGH 7.4REMOTEWATCHLISTDOWNGRADEMITIGATE

CVE-2012-0051 is a high-severity flaw (CVSS 7.4) affecting tahoe-lafs, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Tahoe-LAFS 1.9.0 fails to ensure integrity which allows remote attackers to corrupt mutable files or directories upon retrieval.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-20
Published	2019-11-07
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: debian · tahoe-lafs

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-11-07 18:15 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

tahoe-lafs tahoe-lafs DOWNGRADE

Affected: 1.9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.9.0

1. Check installed version

apt-cache policy tahoe-lafs || rpm -q tahoe-lafs || tahoe-lafs --version

2. No fixed release: DOWNGRADE to a release before 1.9.0 (Debian / Ubuntu)

apt-cache madison tahoe-lafs sudo apt install tahoe-lafs=<VERSION_BEFORE_1.9.0> sudo apt-mark hold tahoe-lafs

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list tahoe-lafs sudo dnf downgrade tahoe-lafs-<VERSION_BEFORE_1.9.0> sudo dnf versionlock add tahoe-lafs

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.

debian debian linux MITIGATE

Affected: 8.0 · 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

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-2012-0051?

tahoe-lafs: downgrade or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-0051 being exploited?

CVE-2012-0051 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-2012-0051 affect?

CVE-2012-0051 affects tahoe-lafs, debian linux. Severity is high (CVSS 7.4). Tahoe-LAFS 1.9.0 fails to ensure integrity which allows remote attackers to corrupt mutable files or directories upon retrieval.

How urgent is CVE-2012-0051?

Priority 60/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2011-3617 MEDIUM 6.5 UPGRADE MITIGATE Tahoe-LAFS v1.3.0 through v1.8.2 could allow unauthorized users to delete immutable files in some cases.

References

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