CVE-2022-46293

Arbitrary code execution via unchecked translation-vector count

Published Jul 21, 2023 · Updated Nov 4, 2025

Out-of-bounds write in Open Babel 3.1.1 and master commit 530dbfa3 allows attackers to execute code via a crafted MOPAC file. In formats/mopacformat.cpp, ReadMolecule increments numTranslationVectors for every eight-token Z record without checking the three-element translationVectors stack array. The affected process must parse the file; the resulting stack corruption permits code execution with that process's privileges.

CVSS severity9.8
Critical
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Open Babel 3.1.1 and master commit 530dbfa3 allows attackers to execute code via a crafted MOPAC file. In formats/mopacformat.cpp, ReadMolecule increments numTranslationVectors for every eight-token Z record without checking the three-element translationVectors stack array. The affected process must parse the file; the resulting stack corruption permits code execution with that process's privileges.

The record

CVE
CVE-2022-46293
Published
Jul 21, 2023
Updated
Nov 4, 2025
Vendor
Open Babel
Product
Open Babel
Classifications
CWE-119, CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.1.1
  2. Affected versionversion=master commit 530dbfa3
  3. Affected versionversion=master_commit_530dbfa3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Open Babel · Open Babelversion=3.1.1; version=master commit 530dbfa3; version=master_commit_530dbfa3

Published CVSS scores

9.8Cisco TalosCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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