How severe is CVE-2022-28935?

CVE-2022-28935 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-28935 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28935?

CVE-2022-28935 primarily affects Totolink A830r 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-2022-28935?

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-2022-28935 published?

CVE-2022-28935 was published on 2022-07-06 and last updated on 2026-06-17.

CVE-2022-28935

CVE-2022-28935 is a high-severity vulnerability in Totolink A830r Firmware with a CVSS 3.x base score of 7.2. 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-77.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Totolink A830r Firmware
Published: 2022-07-06
Last modified: 2026-06-17

Description

Totolink A830R V5.9c.4729_B20191112, Totolink A3100R V4.1.2cu.5050_B20200504, Totolink A950RG V4.1.2cu.5161_B20200903, Totolink A800R V4.1.2cu.5137_B20200730, Totolink A3000RU V5.9c.5185_B20201128, Totolink A810R V4.1.2cu.5182_B20201026 were discovered to contain a command injection vulnerability.

Frequently asked questions

What is CVE-2022-28935?: Totolink A830R V5.9c.4729_B20191112, Totolink A3100R V4.1.2cu.5050_B20200504, Totolink A950RG V4.1.2cu.5161_B20200903, Totolink A800R V4.1.2cu.5137_B20200730, Totolink A3000RU V5.9c.5185_B20201128, Totolink A810R V4.1.2cu.5182_B20201026 were discovered to contain a command injection vulnerability.
How severe is CVE-2022-28935?: CVE-2022-28935 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-28935 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28935?: CVE-2022-28935 primarily affects Totolink A830r 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-2022-28935?: 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-2022-28935 published?: CVE-2022-28935 was published on 2022-07-06 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:totolink:a830r_firmware:5.9c.4729_b20191112:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3100r_firmware:4.1.2cu.5050_b20200504:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a950rg_firmware:4.1.2cu.5161_b20200903:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a800r_firmware:4.1.2cu.5137_b20200730:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a3000ru_firmware:5.9c.5185_b20201128:*:*:*:*:*:*:*
cpe:2.3:o:totolink:a810r_firmware:4.1.2cu.5182_b20201026:*:*:*:*:*:*:*

More vulnerabilities in Totolink A830r Firmware

CVE-2025-28036 — Critical (CVSS 9.8): TOTOLINK A950RG V4.1.2cu.5161_B20200903 was found to contain a pre-auth remote command execution vulnerability in the…
CVE-2025-28035 — Critical (CVSS 9.8): TOTOLINK A830R V4.1.2cu.5182_B20201102 was found to contain a pre-auth remote command execution vulnerability in the…
CVE-2025-28034 — Critical (CVSS 9.8): TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG…
CVE-2022-48066 — Critical (CVSS 9.8): An issue in the component global.so of Totolink A830R V4.1.2cu.5182 allows attackers to bypass authentication via a…
CVE-2022-26214 — Critical (CVSS 9.8): Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R…
CVE-2022-26212 — Critical (CVSS 9.8): Totolink A830R V5.9c.4729_B20191112, A3100R V4.1.2cu.5050_B20200504, A950RG V4.1.2cu.5161_B20200903, A800R…

All CVEs affecting Totolink A830r Firmware →

Other CWE-77 (Command Injection) vulnerabilities

CVE-2026-105484 — Critical (CVSS 10.0): A security vulnerability has been detected in TOTOLINK X6000R 9.4.0cu.652_B20230116. The impacted element is the…
CVE-2026-105134 — Critical (CVSS 10.0): A flaw has been found in Ahsay AhsayCBS up to 10.3.2. This vulnerability affects unknown code of the file…
CVE-2026-102240 — Critical (CVSS 10.0): A vulnerability was found in Netcore NAP930 0.1.241010.141410. This affects the function eval of the file…
CVE-2026-101076 — Critical (CVSS 10.0): A vulnerability was detected in Netcore NR289-GE 1.4.5102. This affects the function system of the file…
CVE-2026-101075 — Critical (CVSS 10.0): A security vulnerability has been detected in Netcore NR289-GE 1.4.5102. The impacted element is the function system of…
CVE-2026-101072 — Critical (CVSS 10.0): A vulnerability was identified in Netcore NR289-GE 1.4.5102. This issue affects the function system of the file…

Browse all CWE-77 (Command Injection) vulnerabilities →