How severe is CVE-2022-4499?

CVE-2022-4499 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-4499 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4499?

CVE-2022-4499 primarily affects Tp-link Archer C5 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-4499?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-4499 published?

CVE-2022-4499 was published on 2023-01-11 and last updated on 2026-06-17.

CVE-2022-4499

CVE-2022-4499 is a high-severity vulnerability in Tp-link Archer C5 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-203.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Tp-link Archer C5 Firmware
Published: 2023-01-11
Last modified: 2026-06-17

Description

TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.

Frequently asked questions

What is CVE-2022-4499?: TP-Link routers, Archer C5 and WR710N-V1, using the latest software, the strcmp function used for checking credentials in httpd, is susceptible to a side-channel attack. By measuring the response time of the httpd process, an attacker could guess each byte of the username and password.
How severe is CVE-2022-4499?: CVE-2022-4499 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-4499 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4499?: CVE-2022-4499 primarily affects Tp-link Archer C5 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-4499?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-4499 published?: CVE-2022-4499 was published on 2023-01-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:tp-link:archer_c5_firmware:2_160201_us:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wr710n_firmware:1_151022_us:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Archer C5 Firmware

CVE-2022-4498 — Critical (CVSS 9.8): In TP-Link routers, Archer C5 and WR710N-V1, running the latest available code, when receiving HTTP Basic…
CVE-2020-35575 — Critical (CVSS 9.8): A password-disclosure issue in the web interface on certain TP-Link devices allows a remote attacker to get full…
CVE-2015-3035 — High (CVSS 7.5): Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317, C7 (2.0) with firmware before…
CVE-2018-19537 — High (CVSS 7.2): TP-Link Archer C5 devices through V2_160201_US allow remote command execution via shell metacharacters on the…

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CVE-2024-25714 — Critical (CVSS 9.8): In Rhonabwy through 1.1.13, HMAC signature verification uses a strcmp function that is vulnerable to side-channel…
CVE-2024-25191 — Critical (CVSS 9.8): php-jwt 1.0.0 uses strcmp (which is not constant time) to verify authentication, which makes it easier to bypass…
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Browse all CWE-203 (Observable Discrepancy) vulnerabilities →