HOME VULNERABILITIESCVE-2022-45063

CRITICAL

CVE-2022-45063

CWE-77Published: November 10, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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.

Technical Analysis

CVE-2022-45063 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Fedora1 product(s)

fedora

invisible-island1 product(s)

xterm

Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.openwall.com/lists/oss-security/2022/11/10/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/11/10/5

PATCHhttps://www.openwall.com/lists/oss-security/2022/11/10/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/11/10/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/11/10/5

PATCHhttps://www.openwall.com/lists/oss-security/2022/11/10/1

ADVISORYhttps://invisible-island.net/xterm/xterm.log.html

ADVISORYhttps://news.ycombinator.com/item?id=33546415

ADVISORYhttps://security.gentoo.org/glsa/202211-09

ADVISORYhttps://invisible-island.net/xterm/xterm.log.html

ADVISORYhttps://news.ycombinator.com/item?id=33546415

ADVISORYhttps://security.gentoo.org/glsa/202211-09

All References (24)

→

http://www.openwall.com/lists/oss-security/2022/11/10/1Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/11/10/5Mailing 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.htmlRelease 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=33546415Exploit · Issue Tracking · Third Party Advisory

→

https://security.gentoo.org/glsa/202211-09Third Party Advisory

→

https://www.openwall.com/lists/oss-security/2022/11/10/1Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/11/10/1Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/11/10/5Mailing 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

Quick Facts

CVE IDCVE-2022-45063

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-77

CISA KEVNo

Affected2 vendor(s)

PublishedNov 10, 2022

Related CVEs (CWE-77)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2022-45063 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.

← All Vulnerabilities·Search for CVE-2022-45063·NVD