9.8

CVE-2021-30072: dlink dir-878_firmware Out-of-bounds Write

CVSS: 9.8v3.1CriticalModified
Published 02-04-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-30072 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in dlink dir-878_firmware. EPSS estimates a 1.43% chance of exploitation in the next 30 days, higher than 72.6% 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
1.43%
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. 02-04-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.43%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.43% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.43%

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

2 links