How severe is CVE-2021-40149?

CVE-2021-40149 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-40149 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40149?

CVE-2021-40149 affects Reolink E1 Zoom Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40149?

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

When was CVE-2021-40149 published?

CVE-2021-40149 was published on 2022-07-17 and last updated on 2026-06-17.

CVE-2021-40149

CVE-2021-40149 is a medium-severity vulnerability in Reolink E1 Zoom Firmware with a CVSS 3.x base score of 5.9. 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-552.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Reolink E1 Zoom Firmware
Published: 2022-07-17
Last modified: 2026-06-17

Description

The web server of the E1 Zoom camera through 3.0.0.716 discloses its SSL private key via the root web server directory. In this way an attacker can download the entire key via the /self.key URI.

Frequently asked questions

What is CVE-2021-40149?: The web server of the E1 Zoom camera through 3.0.0.716 discloses its SSL private key via the root web server directory. In this way an attacker can download the entire key via the /self.key URI.
How severe is CVE-2021-40149?: CVE-2021-40149 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-40149 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40149?: CVE-2021-40149 affects Reolink E1 Zoom Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40149?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40149 published?: CVE-2021-40149 was published on 2022-07-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:reolink:e1_zoom_firmware:*:*:*:*:*:*:*:*

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