Off-by-One Leading to Out-of-Bounds Write in bzip2
CVE-2026-42250 is an off-by-one vulnerability in bzip2 that can lead to an out-of-bounds write. This type of vulnerability is categorized under CWE-787, indicating a memory corruption issue. The vulnerability affects Microsoft products including Azure Linux 3. 0 and bzip2. There is no CVSS score provided, and no known exploits in the wild have been reported. No patch or remediation information is currently available from the vendor advisory. The vulnerability could potentially allow memory corruption, but specific impact details or exploitation methods are not described.
AI Analysis
Technical Summary
This vulnerability is an off-by-one error in the bzip2 component used in Microsoft products such as Azure Linux 3.0. The off-by-one leads to an out-of-bounds write, a form of memory corruption classified as CWE-787. The Microsoft Security Response Center has published an advisory identifying this issue but has not provided a CVSS score or patch information. No known exploits have been reported in the wild. The lack of patch links or vendor remediation details means the current status of fixes is unknown.
Potential Impact
The vulnerability could result in memory corruption due to an out-of-bounds write, which may affect the stability or security of affected systems. However, no specific impact scenarios, such as privilege escalation or remote code execution, are detailed in the available information. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Off-by-One Leading to Out-of-Bounds Write in bzip2
Description
CVE-2026-42250 is an off-by-one vulnerability in bzip2 that can lead to an out-of-bounds write. This type of vulnerability is categorized under CWE-787, indicating a memory corruption issue. The vulnerability affects Microsoft products including Azure Linux 3. 0 and bzip2. There is no CVSS score provided, and no known exploits in the wild have been reported. No patch or remediation information is currently available from the vendor advisory. The vulnerability could potentially allow memory corruption, but specific impact details or exploitation methods are not described.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is an off-by-one error in the bzip2 component used in Microsoft products such as Azure Linux 3.0. The off-by-one leads to an out-of-bounds write, a form of memory corruption classified as CWE-787. The Microsoft Security Response Center has published an advisory identifying this issue but has not provided a CVSS score or patch information. No known exploits have been reported in the wild. The lack of patch links or vendor remediation details means the current status of fixes is unknown.
Potential Impact
The vulnerability could result in memory corruption due to an out-of-bounds write, which may affect the stability or security of affected systems. However, no specific impact scenarios, such as privilege escalation or remote code execution, are detailed in the available information. No known exploitation in the wild has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is provided at this time.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-42250
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a19fedae29bf47b500fe5f7
Added to database: 5/29/2026, 9:02:18 PM
Last enriched: 5/29/2026, 9:16:43 PM
Last updated: 5/31/2026, 4:43:28 AM
Views: 5
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