How severe is CVE-2022-23850?

CVE-2022-23850 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-23850 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23850?

CVE-2022-23850 affects Epub2txt Project Epub2txt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23850?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-23850 published?

CVE-2022-23850 was published on 2022-01-23 and last updated on 2026-06-17.

CVE-2022-23850

CVE-2022-23850 is a high-severity vulnerability in Epub2txt Project Epub2txt with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Epub2txt Project Epub2txt
Published: 2022-01-23
Last modified: 2026-06-17

Description

xhtml_translate_entity in xhtml.c in epub2txt (aka epub2txt2) through 2.02 allows a stack-based buffer overflow via a crafted EPUB document.

Frequently asked questions

What is CVE-2022-23850?: xhtml_translate_entity in xhtml.c in epub2txt (aka epub2txt2) through 2.02 allows a stack-based buffer overflow via a crafted EPUB document.
How severe is CVE-2022-23850?: CVE-2022-23850 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-23850 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23850?: CVE-2022-23850 affects Epub2txt Project Epub2txt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23850?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-23850 published?: CVE-2022-23850 was published on 2022-01-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:epub2txt_project:epub2txt:*:*:*:*:*:*:*:*

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