Review reviewHigh

CVE-2023-39786

ac8v4_firmware, ac8 firmware

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the time parameter in the sscanf function.

CVSS
7.5
EPSS
0.68%
48.9% percentile
CISA KEV
Not listed
Published
2023.08.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.68%
Technical severityCVSS 7.5

Vulnerability overview

Tenda AC8V4 V16.03.34.06 was discovered to contain a stack overflow via the time parameter in the sscanf function.

Affected product and versions

Product
ac8v4_firmware, ac8 firmware
Affected versions
16.03.34.06
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that ac8v4_firmware, ac8 firmware and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-787