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CVE-2026-85458— Divide-by-zero in Xpdf 4.06 due to zero-height Type 3 glyph

Quick assessment

Affected
Xpdf Xpdf
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

xpdf是Xpdf公司开源的一款轻便的PDF文档查看工具。 xpdf 4.06及之前版本存在数字错误漏洞，该漏洞源于Type 3字体中字形高度为零时发生除零错误，可能导致拒绝服务。

CVSS 2.1 · Low EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProduct Version RangeStatus
Xpdf Xpdf 4.06 affected
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I. Basic Information for CVE-2026-85458

Vulnerability Information
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Vulnerability Title
Divide-by-zero in Xpdf 4.06 due to zero-height Type 3 glyph
Source: CVE Program / CVE List V5
Vulnerability Description
Divide-by-zero in Xpdf 4.06 (and earlier), when a glyph in a Type 3 font has a zero height.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
除零错误
Source: CVE Program / CVE List V5
Vulnerability Title
xpdf 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
xpdf是Xpdf公司开源的一款轻便的PDF文档查看工具。 xpdf 4.06及之前版本存在数字错误漏洞，该漏洞源于Type 3字体中字形高度为零时发生除零错误，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Xpdf Xpdf 4.06 -

II. Public POCs for CVE-2026-85458

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III. Intelligence Information for CVE-2026-85458

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News Coverage for CVE-2026-85458 (1)

IV. Related Vulnerabilities

Same product: Xpdf
Same vendor: Xpdf
Same weakness: CWE-369

V. Comments for CVE-2026-85458

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