How severe is CVE-2025-44839?

CVE-2025-44839 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-44839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-44839?

CVE-2025-44839 affects Totolink Ca600-poe Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-44839?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-44839 have an EU (EUVD) identifier?

Yes. CVE-2025-44839 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12835.

When was CVE-2025-44839 published?

CVE-2025-44839 was published on 2025-05-01 and last updated on 2026-06-17.

CVE-2025-44839

CVE-2025-44839 is a medium-severity vulnerability in Totolink Ca600-poe Firmware with a CVSS 3.x base score of 6.5. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12835
Weakness: CWE-77
Affected product: Totolink Ca600-poe Firmware
Published: 2025-05-01
Last modified: 2026-06-17

Description

TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck function via the magicid parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.

Frequently asked questions

What is CVE-2025-44839?: TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the CloudSrvUserdataVersionCheck function via the magicid parameter. This vulnerability allows attackers to execute arbitrary commands via a crafted request.
How severe is CVE-2025-44839?: CVE-2025-44839 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-44839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-44839?: CVE-2025-44839 affects Totolink Ca600-poe Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-44839?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-44839 have an EU (EUVD) identifier?: Yes. CVE-2025-44839 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12835.
When was CVE-2025-44839 published?: CVE-2025-44839 was published on 2025-05-01 and last updated on 2026-06-17.

References

https://github.com/Summermu/VulnForIoT/tree/main/Totolink_CA600-PoE/CloudSrvUserdataVersionCheck_magicid/readme.md

Affected products (1)

cpe:2.3:o:totolink:ca600-poe_firmware:5.3c.6665_b20180820*:*:*:*:*:*:*:*

More vulnerabilities in Totolink Ca600-poe Firmware

CVE-2025-44848 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the msg_process…
CVE-2025-44845 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the NTPSyncWithHost…
CVE-2025-44844 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the setUpgradeFW…
CVE-2025-44843 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the…
CVE-2025-44842 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the msg_process…
CVE-2025-44841 — Medium (CVSS 6.5): TOTOLINK CA600-PoE V5.3c.6665_B20180820 was found to contain a command injection vulnerability in the…

All CVEs affecting Totolink Ca600-poe Firmware →

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