D-Link DSL-2760U Gateway Cross-Site Scripting Vulnerability

CheckOps priority index

5.5/10 Patch within 7 days

Severity5.4

Probability5.1

Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 50.8% higher than 98.9% of CVEs

CVSS 3.1 5.4 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:

Exploited for 1,684 days 25 Mar 2022

CISA due date 15 Apr 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

KEV catalog (CISA)25 Mar 2022
Exploited in EUVD (ENISA)25 Mar 2022
Used by ransomwareno
EPSS above 10 %50.8%
No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Multiple cross-site scripting (XSS) vulnerabilities in D-Link DSL-2760U Gateway (Rev. E1) allow remote authenticated users to inject arbitrary web script or HTML via the (1) ntpServer1 parameter to sntpcfg.cgi, username parameter to (2) ddnsmngr.cmd or (3) todmngr.tod, (4) TodUrlAdd parameter to urlfilter.cmd, (5) appName parameter to scprttrg.cmd, (6) fltName in an add action or (7) rmLst parameter in a remove action to scoutflt.cmd, (8) groupName parameter to portmapcfg.cmd, (9) snmpRoCommunity parameter to snmpconfig.cgi, (10) fltName parameter to scinflt.cmd, (11) PolicyName in an add action or (12) rmLst parameter in a remove action to prmngr.cmd, (13) ippName parameter to ippcfg.cmd, (14) smbNetBiosName or (15) smbDirName parameter to samba.cgi, or (16) wlSsid parameter to wlcfg.wl.

Affected products

DSL-2760U

Weaknesses (CWE)

CWE-79

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

15 Nov 2013
Published
25 Mar 2022
Exploitation reported (ENISA)
25 Mar 2022
Added to the KEV catalog
15 Apr 2022
CISA remediation due date
26 Sept 2026
EPSS peak: 50.8%

Other exploited vulnerabilities from the same vendor

CVE-2025-29635D-Link DIR-823X Command Injection Vulnerability
7.3 · Background exploitation
CVE-2022-37055D-Link Routers Buffer Overflow Vulnerability
8.0 · Background exploitation
CVE-2022-40799D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
6.3 · Background exploitation
CVE-2020-25079D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
6.9 · Background exploitation
CVE-2020-25078D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
8.3 · Background exploitation
CVE-2024-0769D-Link DIR-859 Router Path Traversal Vulnerability
7.0 · Background exploitation