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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2022-40303

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

CVSS 7.5 · HighBuzz score 34.0

Buzz score

Why this CVE is surfacing

Buzz score total 34.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 19.5 · diversity 14.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
19.5
6 evidence mentions in the snapshot
Diversity score
14.5
5 sources across 2 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
6 source links · newest first
  • Bugs that survive the heat of continuous fuzzingGitHub Security Lab

    f that work included enrolling Exiv2 in OSS-Fuzz for continuous fuzzing, which uncovered multiple vulnerabilities, like CVE-2024-39695 , CVE-2024-24826 , and CVE-2023-44398 . Despite the fact that Exiv2 has been enrolled in OSS-Fuzz for more than three years, new vulnerabilities have still been reported by other vulnerability researchers, including CVE

    vendorgithub.blogDec 29, 2025, 10:01 PM
  • 14th November– Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 14th November, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The Australian Federal Police has disclosed that the hacking group responsible for the massive Medibank hack that compromised the personal information of 9.7 million customers is based in Russia. The group’s identity […]

    vendorresearch.checkpoint.comNov 14, 2022, 12:28 PM
  • 14th November– Threat Intelligence ReportCheck Point Research

    For the latest discoveries in cyber research for the week of 14th November, please download our Threat Intelligence Bulletin. Top Attacks and Breaches The Australian Federal Police has disclosed that the hacking group responsible for the massive Medibank hack that compromised the personal information of 9.7 million customers is based in Russia. The group’s identity was not yet […]

    vendorresearch.checkpoint.comNov 14, 2022, 9:35 AM
  • Apple out-of-band patches fix remote code execution bugs in iOS and macOSSecurity Affairs

    Apple released out-of-band patches for iOS and macOS to fix a couple of code execution vulnerabilities in the libxml2 library. Apple released out-of-band patches for iOS and macOS to address two code execution flaws, tracked as CVE-2022-40303 and CVE-2022-40304, in the libxml2 library for parsing XML documents. The two vulnerabilities were discovered by Google Project […]

    newssecurityaffairs.comNov 10, 2022, 9:26 PM
  • Important fixes for iPhones, iPads and Macs releasedMalwarebytes Labs

    Apple has released security updates for iOS, iPadOS, and macOS Ventura to patch two remote code execution (RCE) vulnerabilities that were…

    newswww.malwarebytes.comNov 10, 2022, 5:00 PM
  • Apple Patches Remote Code Execution Flaws in iOS, macOSSecurityWeek

    Apple on Tuesday released out-of-band patches for iOS and macOS, to address two arbitrary code execution vulnerabilities in the libxml2 library. Written in the C programming language and originally developed for the Gnome project, libxml2 is a software library for parsing XML documents.

    newswww.securityweek.comNov 10, 2022, 2:38 PM

Exploit code

Public exploit repository references

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0 repository references · best confidence N/A · max 0 stars
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Related records

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