D-Link DIR-110/412/600/615/645/815 RCE via service.cgi
Published Aug 27, 2025
10.0
CRITICALCVSS 4.0
EPSS 10.43%
Description
Multiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vulnerability in the service.cgi endpoint that allows remote attackers to execute arbitrary system commands without authentication. The flaw stems from improper input handling in the EVENT=CHECKFW parameter, which is passed directly to the system shell without sanitization. A crafted HTTP POST request can inject commands that are executed with root privileges, resulting in full device compromise. These router models are no longer supported at the time of assignment and affected version ranges may vary. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-08-21 UTC.
Affected products
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- Version 1.03StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| D-Link | DIR-110 | n/a |
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| D-Link | DIR-412 | n/a |
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| D-Link | DIR-600 | n/a |
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| D-Link | DIR-615 | n/a |
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| D-Link | DIR-645 | n/a |
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| D-Link | DIR-815 | n/a |
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Configuration 1
- n/a
Configuration 2
- n/a
Configuration 3
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- n/a
Configuration 7
- 1.03
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
1 other source (NVD) ▾
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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:X
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Aug 28, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 10.43% (0.10426) | 95.60th | v5 (v2026.06.15) |
| Aug 22, 2026 | 9.94% (0.09942) | 95.22th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.67% (0.08674) | 94.42th | v5 (v2026.06.15) |
| Nov 18, 2025 | 1.70% (0.01704) | 80.81th | v4 (v2025.03.14) |
| Aug 28, 2025 | 0.19% (0.00194) | 41.53th | v4 (v2025.03.14) |
References (5)
- https://github.com/Cr0n1c/dlink_shell_poc/blob/master/dlink_auth_rce technical-descriptionexploit
- https://legacy.us.dlink.com/ product
- https://support.dlink.com/EndOfLifePolicy.aspx product
- https://www.exploit-db.com/exploits/43496 exploit
- https://www.vulncheck.com/advisories/dlink-dir-rce-service-cgi third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/Cr0n1c/dlink_shell_poc/blob/master/dlink_auth_rce | technical-descriptionexploit | |
| https://legacy.us.dlink.com/ | product | |
| https://support.dlink.com/EndOfLifePolicy.aspx | product | |
| https://www.exploit-db.com/exploits/43496 | exploit | |
| https://www.vulncheck.com/advisories/dlink-dir-rce-service-cgi | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.