CVE-2022-45063

Exp

xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.

Published: 2022-11-10 Last update: 2026-04-08 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-45063 is rated High Exploit Risk (83.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 14.03%, 94th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2022-45063

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2022-45063

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-27 17.94% 14.03% -3.91%
2 2026-04-29 18.33% 17.94% -0.39%
3 2026-04-21 — 18.33% —

Full EPSS history (63 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-45063

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-45063

OS Trackers for CVE-2022-45063

vendor priority summary link
alpine — CVE-2022-45063: 1 source package rows (xterm); 2 state rows across 1 repos (edge-community); fixed 0, open 2. https://security.alpinelinux.org/vuln/CVE-2022-45063
debian not yet assigned CVE-2022-45063 not yet assigned priority: Debian including 1 source packages (xterm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2022-45063
gentoo normal CVE-2022-45063: 1 GLSA(s) (202211-09), 1 atom(s) (x11-terms/xterm); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-45063
redhat medium — https://access.redhat.com/security/cve/CVE-2022-45063
suse high CVE-2022-45063 severity important: SUSE including 246 source package names (21:xterm-bin-330-150200.11.9.1, amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, …), 402 product×package rows across 143 product lines (Container suse/kiosk/xorg, Image SLES12-SP5-Azure-SAP-BYOS, … (143 product lines)): Known Affected 231, Fixed 171. https://www.suse.com/security/cve/CVE-2022-45063/
ubuntu medium CVE-2022-45063 medium priority: Ubuntu including 1 source packages (xterm), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): ignored 6, not-affected 1, released 1. https://ubuntu.com/security/CVE-2022-45063

Affected software / configurations for CVE-2022-45063

Vendor Product Version Raw CPE
invisible-island xterm < 375 cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

References for CVE-2022-45063

URL Tags
http://www.openwall.com/lists/oss-security/2022/11/10/1 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2022/11/10/5 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/06/15/1
http://www.openwall.com/lists/oss-security/2024/06/17/1
https://invisible-island.net/xterm/xterm.log.html Release Notes Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TPVNTYFFWNTGZJJQAA4MGGFSTXA4XEA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5T2JI5JCHPTXX2KJU45H2XAHQSFVEJ2Y/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVD3I2ZFXGOY6BA2FNS7WPFMPFBDHFWC/
https://news.ycombinator.com/item?id=33546415 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/202211-09 Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/11/10/1 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/04/08/1
http://www.openwall.com/lists/oss-security/2026/04/08/10
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