Vulnerability · Published Feb 8, 2021 · Assigned by mitre

CVE-2021-26221

High 8.1

In plain English

A high-severity security flaw in the mapcache package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.1High
Exploit odds (30 days)1.2%top 31.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

The ezxml_new function in ezXML 0.8.6 and earlier is vulnerable to OOB write when opening XML file after exhausting the memory pool.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12mapcacheno fix listedDEBIAN-CVE-2021-26221
Debian:13mapcacheno fix listedDEBIAN-CVE-2021-26221
Debian:14mapcacheno fix listedDEBIAN-CVE-2021-26221
Debian:12netcdf1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:13netcdf1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:14netcdf1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:12netcdf-parallel1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:13netcdf-parallel1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:14netcdf-parallel1:4.9.0-1DEBIAN-CVE-2021-26221
Debian:12scilabno fix listedDEBIAN-CVE-2021-26221
Debian:13scilabno fix listedDEBIAN-CVE-2021-26221
Debian:14scilab2024.1.0+dfsg1-1DEBIAN-CVE-2021-26221
Ubuntu:22.04:LTSmapcacheno fix listedUBUNTU-CVE-2021-26221
Ubuntu:24.04:LTSmapcacheno fix listedUBUNTU-CVE-2021-26221
Ubuntu:25.10mapcacheno fix listedUBUNTU-CVE-2021-26221
Ubuntu:26.04:LTSmapcacheno fix listedUBUNTU-CVE-2021-26221
Ubuntu:26.10mapcacheno fix listedUBUNTU-CVE-2021-26221
Ubuntu:22.04:LTSnetcdfno fix listedUBUNTU-CVE-2021-26221
Ubuntu:22.04:LTSnetcdf-parallelno fix listedUBUNTU-CVE-2021-26221
Ubuntu:22.04:LTSscilabno fix listedUBUNTU-CVE-2021-26221
Ubuntu:24.04:LTSscilabno fix listedUBUNTU-CVE-2021-26221
Ubuntu:25.10scilabno fix listedUBUNTU-CVE-2021-26221
Ubuntu:26.04:LTSscilabno fix listedUBUNTU-CVE-2021-26221
Ubuntu:26.10scilabno fix listedUBUNTU-CVE-2021-26221

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References