9.8

CVE-2023-39666: dlink dir-842_firmware Classic Buffer Overflow

CVSS: 9.8v3.1CriticalModified
Published 18-08-2023Last modified 07-10-2024
Open JSON

Vulnerability summary

CVE-2023-39666 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in dlink dir-842_firmware. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.40%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-08-2023
    PublishedVulnerability first disclosed.
  2. 07-10-2024
    Last modifiedVulnerability information updated.

Description

D-Link DIR-842 fw_revA_1-02_eu_multi_20151008 was discovered to contain multiple buffer overflows in the fgets function via the acStack_120 and acStack_220 parameters.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.40%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

0.00 pp

From 1.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.40%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Dlink1 product

1 vendor · 1 product

References

3 links