CVE-2022-43148: rtf2html v0.2.0 was discovered to contain a heap overflow in the component /rtf2html/./rtf_tools.h.

Routine

MEDIUM 5.5DOWNGRADE

CVE-2022-43148 is a medium-severity flaw (CVSS 5.5) affecting rtf2html. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

rtf2html v0.2.0 was discovered to contain a heap overflow in the component /rtf2html/./rtf_tools.h.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-787
Published	2022-10-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rtf2html project

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

Am I affected?

Timeline

2022-10-31 19:15 UTCPublished CVE record published
2026-06-17 05:05 UTCUpdated Record last modified

rtf2html project rtf2html DOWNGRADE

Affected: 0.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.2.0

1. Check installed version

apt-cache policy rtf2html || rpm -q rtf2html || rtf2html --version

2. No fixed release: DOWNGRADE to a release before 0.2.0 (Debian / Ubuntu)

apt-cache madison rtf2html sudo apt install rtf2html=<VERSION_BEFORE_0.2.0> sudo apt-mark hold rtf2html

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

dnf --showduplicates list rtf2html sudo dnf downgrade rtf2html-<VERSION_BEFORE_0.2.0> sudo dnf versionlock add rtf2html

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.

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-2022-43148?

rtf2html: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-43148 being exploited?

CVE-2022-43148 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-2022-43148 affect?

CVE-2022-43148 affects rtf2html. Severity is medium (CVSS 5.5). rtf2html v0.2.0 was discovered to contain a heap overflow in the component /rtf2html/./rtf_tools.h.

How urgent is CVE-2022-43148?

Priority 30/100. Public exploit reference

References

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