High severity8.8NVD Advisory· Published May 20, 2021· Updated Jun 17, 2026
CVE-2021-33477
CVE-2021-33477
Description
rxvt-unicode 9.22, rxvt 2.7.10, mrxvt 0.5.4, and Eterm 0.9.7 allow (potentially remote) code execution because of improper handling of certain escape sequences (ESC G Q). A response is terminated by a newline.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
17- cpe:2.3:a:eterm_project:eterm:0.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:mrxvt_project:mrxvt:0.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:rxvt-unicode_project:rxvt-unicode:9.22:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- rxvt-unicode/rxvt-unicodedescription
- Range: =0.9.7
- Range: =9.22
- osv-coords5 versionspkg:rpm/opensuse/rxvt-unicode&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/rxvt-unicode&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/rxvt-unicode&distro=openSUSE%20Tumbleweedpkg:rpm/suse/rxvt-unicode&distro=SUSE%20Package%20Hub%2015%20SP3pkg:rpm/suse/rxvt-unicode&distro=SUSE%20Package%20Hub%2015%20SP4
< 9.26-bp154.2.3.1+ 4 more
- (no CPE)range: < 9.26-bp154.2.3.1
- (no CPE)range: < 9.26-bp154.2.3.1
- (no CPE)range: < 9.30-2.1
- (no CPE)range: < 9.26-bp154.2.3.1
- (no CPE)range: < 9.26-bp154.2.3.1
Patches
Vulnerability mechanics
References
19- cvs.schmorp.de/rxvt-unicode/src/command.CnvdPatchThird Party Advisory
- packetstormsecurity.com/files/162621/rxvt-2.7.0-rxvt-unicode-9.22-Code-Execution.htmlnvdExploitThird Party AdvisoryVDB Entry
- www.openwall.com/lists/oss-security/2021/05/17/1nvdExploitMailing ListThird Party Advisory
- cvs.schmorp.de/rxvt-unicode/ChangesnvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/05/msg00026.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00010.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00011.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00012.htmlnvdMailing ListThird Party Advisory
- security.gentoo.org/glsa/202105-17nvdThird Party Advisory
- security.gentoo.org/glsa/202209-07nvdThird Party Advisory
- sourceforge.net/projects/materm/files/mrxvt%20source/nvdProductThird Party Advisory
- sourceforge.net/projects/rxvt/files/rxvt-dev/nvdProductThird Party Advisory
- www.openwall.com/lists/oss-security/2017/05/01/20nvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RFMU5YXXNYYVA7G2DAHRXXHO6JKVFUT/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AO52OLNOOKOCZSJCN3R7Q25XA32BWNWP/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DUV4LDVZVW7KCGPAMFZD4ZJ4FVLPOX4C/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZWGE2RJONBEHSPCBUAW72NTRTIFKZAX/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLPVEPBH37EBR4R54RMC6GD33J37HJXD/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXAKO6N6NKTR6Z6KVAPEXSZQMRU52SGA/nvd
News mentions
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