What is CVE-2021-31658?

CVE-2021-31658 is a high-severity vulnerability in TP-Link Tl-Sg2005, classified under Improper Validation of Array Index. CVSS score: 8.1/10. Published 2021-06-10.

How severe is CVE-2021-31658?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2021-31658 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in TP-Link Tl-Sg2005

CVE-2021-31658

TP-Link TL-SG2005, TL-SG2008, etc. 1.0.0 Build 20180529 Rel.40524 is affected by an Array index error. The interface that provides the "device description" function only judges the length of the received data, and does not filter special characters. This vulnerability will cause the application to crash, and all device configuration information will be erased.

EPSS: 0.010 (59.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H.

Affected products

Tp-link Tl-sg2005
Tp-link Tl-sg2005_firmware — versions 1.0.0
Tp-link Tl-sg2008
Tp-link Tl-sg2008_firmware — versions 1.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-31658?: CVE-2021-31658 is a high-severity vulnerability in TP-Link Tl-Sg2005, classified under Improper Validation of Array Index. CVSS score: 8.1/10. Published 2021-06-10.
How severe is CVE-2021-31658?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2021-31658 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.