CVE-2018-8754: The libevt_record_values_read_event() function in libevt_record_values.c in libevt before 2018-03-17 does not

Q: How do I fix CVE-2018-8754?

libevt: upgrade to 20180317; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2018-8754 being exploited?

CVE-2018-8754 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-2018-8754 affect?

CVE-2018-8754 affects libevt, debian linux. Severity is medium (CVSS 5.5). The libevt_record_values_read_event() function in libevt_record_values.c in libevt before 2018-03-17 does not properly check for out-of-bounds values of user SID data size, strings size, or data size. NOTE: the vendor has disputed this as d

Q: How urgent is CVE-2018-8754?

Priority 31/100. On your watchlist

Routine

MEDIUM 5.5WATCHLISTUPGRADEMITIGATE

CVE-2018-8754 is a medium-severity flaw (CVSS 5.5) affecting libevt, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The libevt_record_values_read_event() function in libevt_record_values.c in libevt before 2018-03-17 does not properly check for out-of-bounds values of user SID data size, strings size, or data size. NOTE: the vendor has disputed this as described in libyal/libevt issue 5 on GitHub

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-125
Published	2018-03-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · libevt project

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

Am I affected?

Timeline

2018-03-18 03:29 UTCPublished CVE record published
2026-06-17 02:05 UTCUpdated Record last modified

libevt project libevt UPGRADE

Affected: < 20180317

Fixed in: 20180317

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libevt || rpm -q libevt || libevt --version

2. UPGRADE to 20180317 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libevt

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libevt

Note

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

debian debian linux MITIGATE

Affected: 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

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-2018-8754?

libevt: upgrade to 20180317; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-8754 being exploited?

CVE-2018-8754 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-2018-8754 affect?

CVE-2018-8754 affects libevt, debian linux. Severity is medium (CVSS 5.5). The libevt_record_values_read_event() function in libevt_record_values.c in libevt before 2018-03-17 does not properly check for out-of-bounds values of user SID data size, strings size, or data size. NOTE: the vendor has disputed this as d

How urgent is CVE-2018-8754?

Priority 31/100. On your watchlist

Software pages

GitHub vulnerabilities · Debian vulnerabilities

References

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