How severe is CVE-2022-26987?

CVE-2022-26987 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-26987 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26987?

CVE-2022-26987 primarily affects Tp-link Tl-wdr7660 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26987?

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-2022-26987 published?

CVE-2022-26987 was published on 2022-05-10 and last updated on 2026-07-05.

CVE-2022-26987

CVE-2022-26987 is a high-severity vulnerability in Tp-link Tl-wdr7660 Firmware with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tp-link Tl-wdr7660 Firmware
Published: 2022-05-10
Last modified: 2026-07-05

Description

TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow issue in `MmtAtePrase` function. Local users could get remote code execution.

Frequently asked questions

What is CVE-2022-26987?: TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow issue in `MmtAtePrase` function. Local users could get remote code execution.
How severe is CVE-2022-26987?: CVE-2022-26987 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-26987 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-26987?: CVE-2022-26987 primarily affects Tp-link Tl-wdr7660 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26987?: 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-2022-26987 published?: CVE-2022-26987 was published on 2022-05-10 and last updated on 2026-07-05.

References

Affected products (6)

cpe:2.3:o:tp-link:tl-wdr7660_firmware:2.0.30:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wdr7661_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wdr7620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wdr5660_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:mercusys:mercury_d196g_firmware:20200109_2.0.4:*:*:*:*:*:*:*
cpe:2.3:o:fastcom:fac1900r_firmware:20190827_2.0.2:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Tl-wdr7660 Firmware

CVE-2023-46373 — Critical (CVSS 9.8): TP-Link TL-WDR7660 2.0.30 has a stack overflow vulnerability via the function deviceInfoJsonToBincauses.
CVE-2023-46371 — Critical (CVSS 9.8): TP-Link device TL-WDR7660 2.0.30 and TL-WR886N 2.0.12 has a stack overflow vulnerability via the function…
CVE-2021-37774 — High (CVSS 8.0): An issue was discovered in function httpProcDataSrv in TL-WDR7660 2.0.30 that allows attackers to execute arbitrary…
CVE-2022-26988 — High (CVSS 7.8): TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow…
CVE-2024-48714 — Medium (CVSS 6.5): In TP-Link TL-WDR7660 v1.0, the guestRuleJsonToBin function handles the parameter string name without checking it,…
CVE-2024-48713 — Medium (CVSS 6.5): In TP-Link TL-WDR7660 1.0, the wacWhitelistJsonToBin function handles the parameter string name without checking it,…

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