CVE-2023-25280 — Dir820la1 Firmware
CRITICALCVE-2023-25280 is a critical-severity (CVSS 9.8) OS Command Injection vulnerability in dlink dir820la1 firmware. It is in CISA's Known Exploited Vulnerabilities catalog (added 2024-09-30) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a crafted payload with the ping_addr parameter to ping.ccp.
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2024-09-30. Federal agencies were required to remediate by 2024-10-21.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2023-25280.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2023-25280 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 394,803 CVEs with a current EPSS score, this one falls in the ≥ 90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to escalate privileges to root via a crafted payload with the ping_addr parameter to ping.ccp.
Affected Products
dir820la1 firmwaredlinkResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every dlink dir820la1 firmware deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2023-25280 yet — track the dlink dir820la1 firmware advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
How to detect CVE-2023-25280
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2023-25280 -u https://target- Template
- D-Link DIR820LA1_FW105B03 'ping_addr' - OS Command Injection
- Severity
- critical
- Impact
- Unauthenticated attackers can execute arbitrary OS commands with root privileges on the D-Link DIR820LA1 router, leading to complete device compromise and network takeover.
- Remediation
- Upgrade to the latest firmware version from D-Link or replace the affected device with a patched model.
Template by ProjectDiscovery nuclei-templates (pussycat0x), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2023-25280 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.