How severe is CVE-2023-46321?

CVE-2023-46321 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-46321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-46321?

CVE-2023-46321 primarily affects Iterm2. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-46321?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-46321 published?

CVE-2023-46321 was published on 2023-10-23 and last updated on 2026-06-17.

CVE-2023-46321

CVE-2023-46321 is a critical-severity vulnerability in Iterm2 with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-117.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-117
Affected product: Iterm2
Published: 2023-10-23
Last modified: 2026-06-17

Description

iTermSessionLauncher.m in iTerm2 before 3.5.0beta12 does not sanitize paths in x-man-page URLs. They may have shell metacharacters for a /usr/bin/man command line.

Frequently asked questions

What is CVE-2023-46321?: iTermSessionLauncher.m in iTerm2 before 3.5.0beta12 does not sanitize paths in x-man-page URLs. They may have shell metacharacters for a /usr/bin/man command line.
How severe is CVE-2023-46321?: CVE-2023-46321 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-46321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-46321?: CVE-2023-46321 primarily affects Iterm2. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-46321?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-46321 published?: CVE-2023-46321 was published on 2023-10-23 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:iterm2:iterm2:*:*:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta1:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta10:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta2:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta3:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta4:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta5:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta6:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta7:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta8:*:*:*:*:*:*
cpe:2.3:a:iterm2:iterm2:3.5.0:beta9:*:*:*:*:*:*

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