CVE-2026-8346: d-link dir-816 Injection
CVSS: 8.8v3.1HighAnalyzed
Published 11-05-2026Last modified 12-05-2026
Vulnerability summary
CVE-2026-8346 is a high (CVSS 8.8) Injection vulnerability in d-link dir-816. EPSS estimates a 4.97% chance of exploitation in the next 30 days, higher than 92.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
4.97%
0%100%
Low · +1.88 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 11-05-2026PublishedVulnerability first disclosed.
- 12-05-2026Last modifiedVulnerability information updated.
Description
A vulnerability was detected in D-Link DIR-816 1.10CNB05_R1B011D88210. This affects the function portForward. Performing a manipulation of the argument ip_address results in command injection. The attack can be initiated remotely. The exploit is now public and may be used.
CVSS metrics
7 scores · 2 sources · 4 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PSources2 sources · 2.1–5.3
- NVDNIST2.1LowCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XDiffers
High 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 6.3–8.8
- CVE.orgCNA6.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RDiffers
Medium 6.3Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RSourcesSingle source
Medium 6.5Preferred score · CVE.org (CNA)
AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:URSourcesAll 2 agree
- NVDNIST6.5MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS trend
Probability
4.97%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
+1.88 pp
From 3.09% on 20-09-2026
20-09-202620-10-2026
EPSS score4.97%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundIot Bug
Maturity: poc
Weaknesses
CWE · root cause- CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Affected systems
D-link1 product
- dir-8161.10CNB05_R1B011D88210
Dlink1 product
- dir-816_firmware1.10cnb05_r1b011d88210
2 vendors · 2 products
References
5 links- www.dlink.comProduct