Security readout for executives and security teams
Plain-English summary
Zutty terminal emulator versions before 0.13 can be made to execute arbitrary code when hostile text is written to the terminal. This can turn viewing terminal output into a system compromise risk. The issue is rated critical, but the provided sources do not show active exploitation.
Executive priority
Prioritize remediation where Zutty is installed on administrator workstations, developer systems, or servers that display untrusted output. The business urgency is high because the stated impact is arbitrary code execution, even though active exploitation is not evidenced here.
Technical view
CVE-2022-41138 is a CWE-94 code injection flaw involving DECRQSS handling in Zutty before 0.13. The CVSS 3.1 score is 9.8, with high confidentiality, integrity, and availability impact. Primary references are the 0.13 comparison, upstream commit, Gentoo bug, and GLSA advisory.
Likely exposure
Exposure is likely limited to systems with Zutty installed at versions earlier than 0.13. The CVE metadata lacks CPEs and names affected vendor/product as n/a, so confirm through package and binary inventories.
Exploitation context
The source bundle reports arbitrary code execution through terminal text handling. It does not include exploit code, public exploitation evidence, or CISA KEV listing. Treat exploit status as unconfirmed from these sources.
Researcher notes
The core evidence is concise: Zutty before 0.13, DECRQSS handling, arbitrary code execution, CWE-94, and CVSS 9.8. Product metadata is incomplete, so validation should rely on actual installed package versions and the upstream 0.13 fix references.
Mitigation direction
- Upgrade Zutty to version 0.13 or later.
- Apply Gentoo guidance from GLSA-202209-25 where applicable.
- Remove or disable vulnerable Zutty installations if upgrade is not immediately possible.
- Review upstream and distribution advisories for environment-specific package names.
- Limit rendering of untrusted terminal output until remediation is complete.
Validation and detection
- Inventory endpoints and servers for Zutty installations.
- Confirm installed Zutty versions are 0.13 or later.
- Check Gentoo systems for GLSA-202209-25 remediation status.
- Review software inventories for manually installed Zutty binaries.
- Document any vulnerable hosts that require compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-41138 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/tomszilagyi/zutty/commit/bde7458c60a7bafe08bbeaafbf861eb865edfa38CVE reference · x_refsource_MISC
- https://bugs.gentoo.org/868495CVE reference · x_refsource_MISC
- https://github.com/tomszilagyi/zutty/compare/0.12...0.13CVE reference · x_refsource_MISC
- GLSA-202209-25CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.