CVE-2022-28376: verizon lvskihp_firmware Improper Authentication
Vulnerability summary
CVE-2022-28376 is a high (CVSS 8.1) Improper Authentication vulnerability in verizon lvskihp_firmware. EPSS estimates a 1.23% chance of exploitation in the next 30 days, higher than 69% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Timeline
- 03-04-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Verizon 5G Home LVSKIHP outside devices through 2022-02-15 allow anyone (knowing the device's serial number) to access a CPE admin website, e.g., at the 10.0.0.1 IP address. The password (for the verizon username) is calculated by concatenating the serial number and the model (i.e., the LVSKIHP string), running the sha256sum program, and extracting the first seven characters concatenated with the last seven characters of that SHA-256 value.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.23%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.23% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundSecwriteups
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Verizon1 product
- lvskihp_firmware≤ 2022-02-15
1 vendor · 1 product
References
2 links- www.reddit.com/r/verizon/comments/sstq4c/5g_home_internet_dropping_out/hx3ir0s/X Refsource MISCThird Party Advisory
- github.com/JousterL/SecWriteups/blob/main/Verizon%20LVSKIHP%205G%20Modem/readme.mdX Refsource MISCExploitThird Party Advisory