CVE-2021-20738

CVE-2021-20738 is a medium-severity vulnerability in Elecom Wrc-1167fs-w 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.

Key facts

Description

WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors.

Frequently asked questions

What is CVE-2021-20738?
WRC-1167FS-W, WRC-1167FS-B, and WRC-1167FSA all versions allow an unauthenticated network-adjacent attacker to obtain sensitive information via unspecified vectors.
How severe is CVE-2021-20738?
CVE-2021-20738 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-20738 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20738?
CVE-2021-20738 primarily affects Elecom Wrc-1167fs-w Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20738?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20738 published?
CVE-2021-20738 was published on 2021-07-07 and last updated on 2026-06-17.

References

Affected products (3)