Vulnerability in ZTE Mf971r

CVE-2021-21743

ZTE MF971R product has a CRLF injection vulnerability. An attacker could exploit the vulnerability to modify the HTTP response header information through a specially crafted HTTP request.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-21743: held from 0.009 to 0.009.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

  • ZTE Mf971r
  • ZTE Mf971r Firmware — versions v1.0.0b05, 1v1.0.0b06, 2v1.0.0b03
  • Mf971r — versions BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, BD_ZTE_MF971RSV1.0.0B05

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-21743?
CVE-2021-21743 is a medium-severity vulnerability in ZTE Mf971r, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.3/10. Published 2021-10-20.
How severe is CVE-2021-21743?
Medium severity. CVSS v3 base score is 4.3 out of 10.