How severe is CVE-2022-27135?

CVE-2022-27135 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-27135 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27135?

CVE-2022-27135 affects Xpdfreader Xpdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-27135?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-27135 published?

CVE-2022-27135 was published on 2022-04-25 and last updated on 2026-06-17.

CVE-2022-27135

CVE-2022-27135 is a medium-severity vulnerability in Xpdfreader Xpdf with a CVSS 3.x base score of 5.5. 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: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Xpdfreader Xpdf
Published: 2022-04-25
Last modified: 2026-06-17

Description

xpdf 4.03 has heap buffer overflow in the function readXRefTable located in XRef.cc. An attacker can exploit this bug to cause a Denial of Service (Segmentation fault) or other unspecified effects by sending a crafted PDF file to the pdftoppm binary.

Frequently asked questions

What is CVE-2022-27135?: xpdf 4.03 has heap buffer overflow in the function readXRefTable located in XRef.cc. An attacker can exploit this bug to cause a Denial of Service (Segmentation fault) or other unspecified effects by sending a crafted PDF file to the pdftoppm binary.
How severe is CVE-2022-27135?: CVE-2022-27135 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-27135 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27135?: CVE-2022-27135 affects Xpdfreader Xpdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-27135?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-27135 published?: CVE-2022-27135 was published on 2022-04-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xpdfreader:xpdf:4.03:*:*:*:*:*:*:*

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