CVE-2021-41314 in the critical feed json
Certain NETGEAR smart switches are affected by a \n injection in the web UI's password field, which - due to several faulty aspects of the…
published 2021-09-16 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28343
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 13.6%
- EPSS 13.6% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
Certain NETGEAR smart switches are affected by a \n injection in the web UI's password field, which - due to several faulty aspects of the authentication scheme - allows the attacker to create (or overwrite) a file with specific content (e.g., the "2" string). This leads to admin session crafting and therefore gaining full web UI admin privileges by an unauthenticated attacker. This affects GC108P before 1.0.8.2, GC108PP before 1.0.8.2, GS108Tv3 before 7.0.7.2, GS110TPP before 7.0.7.2, GS110TPv3 before 7.0.7.2, GS110TUP before 1.0.5.3, GS308T before 1.0.3.2, GS310TP before 1.0.3.2, GS710TUP before 1.0.5.3, GS716TP before 1.0.4.2, GS716TPP before 1.0.4.2, GS724TPP before 2.0.6.3, GS724TPv2 before 2.0.6.3, GS728TPPv2 before 6.0.8.2, GS728TPv2 before 6.0.8.2, GS750E before 1.0.1.10, GS752TPP before 6.0.8.2, GS752TPv2 before 6.0.8.2, MS510TXM before 1.0.4.2, and MS510TXUP before 1.0.4.2.
Patch / fix
- netgear gc108p_firmware 1.0.8.2
- netgear gc108pp_firmware 1.0.8.2
- netgear gs108t_firmware 7.0.7.2
- netgear gs110tpp_firmware 7.0.7.2
- netgear gs110tp_firmware 7.0.7.2
- netgear gs110tup_firmware 1.0.5.3
- netgear gs308t_firmware 1.0.3.2
- netgear gs310tp_firmware 1.0.3.2
- netgear gs710tup_firmware 1.0.5.3
- netgear gs716tp_firmware 1.0.4.2
- netgear gs716tpp_firmware 1.0.4.2
- netgear gs724tpp_firmware 2.0.6.3
- netgear gs724tp_firmware 2.0.6.3
- netgear gs728tpp_firmware 2.0.6.3
- netgear gs728tp_firmware 2.0.6.3
- netgear gs750e_firmware 1.0.1.10
- netgear gs752tpp_firmware 6.0.8.2
- netgear gs752tp_firmware 6.0.8.2
- netgear ms510txm_firmware 1.0.4.2
- netgear ms510txup_firmware 1.0.4.2
Exploit prediction
13.62% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gynvael.coldwind.pl https://gynvael.coldwind.pl/?id=742 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 8.3 | AV:A/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
gynvael.coldwind.pl
/?id=742
exploit, third-party-advisory
-
kb.netgear.com
/000063978/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Smart-Switches-PSV-2021-0140-PSV-2021-0144-P
vendor-advisory
Sources
- CVE List CVE-2021-41314
- NVD CVE-2021-41314
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.