CVE-2021-35331

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 74.3% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-07-05 14:59Z5 YR AGO

Last updated

2024-08-04 00:33Z2 YR AGO

Reserved

2021-06-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-134Use of Externally-Controlled Format StringBase

Data version

5.1

Document digest

3e7ba4805fb3607f3f994261af4e3d7f44cfdd9dfb4cd809621365c13fb7f33d

• core.tcl-lang.orghttps://core.tcl-lang.org/tcl/info/bad6cc213dfe8280x_refsource_MISC
• core.tcl-lang.orghttps://core.tcl-lang.org/tcl/info/28ef6c0c741408a2x_refsource_MISC
• github.comhttps://github.com/tcltk/tcl/commit/4705dbdde2f32ff90420765cd93e7ac71d81a222x_refsource_MISC
• sqlite.orghttps://sqlite.org/forum/info/7dcd751996c93ec9x_refsource_MISC