SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-46442

In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration files and updating firmware without authorization.

CRITICAL 9.8EPSS 56.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 56.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration files and updating firmware without authorization.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
56.06% probability · 99th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
dlink/dir-825 firmware
Source
cve@mitre.org
EPSS trend
0%30%60%3 November 2026: 56.06%3 November 20263 November 2026

EPSS 56.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.