How severe is CVE-1999-1383?

CVE-1999-1383 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-1999-1383 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1383?

CVE-1999-1383 primarily affects Gnu Bash. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-1999-1383?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-1999-1383 published?

CVE-1999-1383 was published on 1996-09-13 and last updated on 2026-06-16.

CVE-1999-1383

CVE-1999-1383 is a medium-severity vulnerability in Gnu Bash with a CVSS 2.0 base score of 4.6. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Gnu Bash
Published: 1996-09-13
Last modified: 2026-06-16

Description

(1) bash before 1.14.7, and (2) tcsh 6.05 allow local users to gain privileges via directory names that contain shell metacharacters (` back-tick), which can cause the commands enclosed in the directory name to be executed when the shell expands filenames using the \w option in the PS1 variable.

Frequently asked questions

What is CVE-1999-1383?: (1) bash before 1.14.7, and (2) tcsh 6.05 allow local users to gain privileges via directory names that contain shell metacharacters (` back-tick), which can cause the commands enclosed in the directory name to be executed when the shell expands filenames using the \w option in the PS1 variable.
How severe is CVE-1999-1383?: CVE-1999-1383 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-1999-1383 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1383?: CVE-1999-1383 primarily affects Gnu Bash. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-1999-1383?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1383 published?: CVE-1999-1383 was published on 1996-09-13 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.4:*:*:*:*:*:*:*
cpe:2.3:a:gnu:bash:1.14.5:*:*:*:*:*:*:*
cpe:2.3:a:tcsh:tcsh:6.05:*:*:*:*:*:*:*

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