CVE-2022-29788: libmobi before v0.10 contains a NULL pointer dereference via the component mobi_buffer_getpointer

Q: How do I fix CVE-2022-29788?

libmobi: upgrade to 0.10. Exact commands for each OS are on this page.

Q: Is CVE-2022-29788 being exploited?

CVE-2022-29788 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-2022-29788 affect?

CVE-2022-29788 affects libmobi. Severity is medium (CVSS 6.5). libmobi before v0.10 contains a NULL pointer dereference via the component mobi_buffer_getpointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted mobi file.

Q: How urgent is CVE-2022-29788?

Priority 37/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2022-29788 is a medium-severity flaw (CVSS 6.5) affecting libmobi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libmobi before v0.10 contains a NULL pointer dereference via the component mobi_buffer_getpointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted mobi file.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-476
Published	2022-06-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: libmobi project

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

Am I affected?

Timeline

2022-06-02 14:15 UTCPublished CVE record published
2026-06-17 04:40 UTCUpdated Record last modified

libmobi project libmobi UPGRADE

Affected: < 0.10

Fixed in: 0.10

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.10 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libmobi

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-2022-29788?

libmobi: upgrade to 0.10. Exact commands for each OS are on this page.

Is CVE-2022-29788 being exploited?

CVE-2022-29788 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-2022-29788 affect?

CVE-2022-29788 affects libmobi. Severity is medium (CVSS 6.5). libmobi before v0.10 contains a NULL pointer dereference via the component mobi_buffer_getpointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted mobi file.

How urgent is CVE-2022-29788?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2022-2279 MEDIUM 5.5 UPGRADE NULL Pointer Dereference in GitHub repository bfabiszewski/libmobi prior to 0.11.
CVE-2022-1987 HIGH 8.1 UPGRADE Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11.
CVE-2022-1908 HIGH 8.1 UPGRADE Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11.
CVE-2022-1907 HIGH 8.1 UPGRADE Buffer Over-read in GitHub repository bfabiszewski/libmobi prior to 0.11.
CVE-2022-1534 HIGH 7.1 UPGRADE Buffer Over-read at parse_rawml.c:1416 in GitHub repository bfabiszewski/libmobi prior to 0.11

References

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