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CVE-2026-8697: Due to improper enforcement of authentication rate-limiting on a debug SSH service in Archer C64 v1, the SSH s

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This month
HIGH 8.8MITIGATE

CVE-2026-8697 is a high-severity flaw (CVSS 8.8) affecting archer c64 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Due to improper enforcement of authentication rate-limiting on a debug SSH service in Archer C64 v1, the SSH service allows unlimited authentication attempts and uses the same credentials as the web interface. This enables an attacker to brute-force valid credentials via SSH. Successful exploitation could allow an attacker with adjacent network access to obtain administrative credentials through unrestricted authentication attempts and subseque

Why this priority

  • High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score8.8 (High)
Attack vectorAdjacent network
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 57%)
CISA exploited listNo
WeaknessCWE-288, CWE-306
Published2026-05-28
Last modified2026-10-26
Publisher (CNA): TPLink · Vendor: tp-link

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Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

tp-link archer c64 firmware MITIGATE
Affected: 1.15.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.15.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-8697?

archer c64 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-8697 being exploited?

CVE-2026-8697 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-8697 affect?

CVE-2026-8697 affects archer c64 firmware. Severity is high (CVSS 8.8). Due to improper enforcement of authentication rate-limiting on a debug SSH service in Archer C64 v1, the SSH service allows unlimited authentication attempts and uses the same credentials as the web interface. This enables an attacker to b

How urgent is CVE-2026-8697?

Priority 42/100. High severity

Software pages

TP-Link vulnerabilities

References

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