CVE-2022-35060Network attack vector

Process crash via malformed OpenType font parsing

Published Sep 19, 2022 · Updated May 29, 2025

Heap buffer overflow in OTFCC otfccdump commit 617837b allows remote attackers to crash the process via a crafted OpenType font. The parser writes beyond a heap allocation while converting the font to JSON, but the public report identifies only binary offset +0x6c0a32 and does not disclose the source-level function or malformed field. Exploitation requires the affected utility to process an attacker-supplied font, and the published impact is limited to service interruption.

CVSS severity6.5
Medium
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in OTFCC otfccdump commit 617837b allows remote attackers to crash the process via a crafted OpenType font. The parser writes beyond a heap allocation while converting the font to JSON, but the public report identifies only binary offset +0x6c0a32 and does not disclose the source-level function or malformed field. Exploitation requires the affected utility to process an attacker-supplied font, and the published impact is limited to service interruption.

The record

CVE
CVE-2022-35060
Published
Sep 19, 2022
Updated
May 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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