CVE-2014-125122

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 49% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A stack-based buffer overflow vulnerability exists in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The vulnerability is triggered by sending a specially crafted HTTP POST request with an overly long TM_Block_URL parameter to the endpoint. By exploiting this flaw, an unauthenticated remote attacker can overwrite memory in a controlled manner, enabling them to temporarily reset the administrator password of the device to a blank value. This grants unauthorized access to the router’s web management interface without requiring valid credentials.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
51.4%
KEV
Not listed

Published

July 31, 2025

Last Modified

April 15, 2026

References (4)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 21:53 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
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  1. 2026-07-01 15:02 UTCEPSS rescore
  2. 2026-06-30 23:19 UTCEPSS rescore
  3. 2026-06-29 14:02 UTCEPSS rescore
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  5. 2026-06-28 04:53 UTCEPSS rescore
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  28. 2026-06-14 23:14 UTCEPSS rescore
  29. 2026-06-13 22:57 UTCEPSS rescore
  30. 2026-06-12 23:08 UTCEPSS rescore
  31. 2026-06-11 13:56 UTCEPSS rescore
  32. 2026-06-10 22:15 UTCEPSS rescore
  33. 2026-06-10 13:18 UTCEPSS rescore
  34. 2026-06-08 15:51 UTCEG score recompute▲ 5.30
  35. 2026-06-08 15:51 UTCGHSA enrichment
  36. 2026-06-05 22:44 UTCEPSS rescore
  37. 2026-06-05 22:44 UTCEPSS rescore
  38. 2026-06-04 13:09 UTCEPSS rescore
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  40. 2026-06-02 20:10 UTCEPSS rescore
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  42. 2026-05-31 00:14 UTCEPSS rescore
  43. 2026-05-31 00:14 UTCEPSS rescore
  44. 2026-05-29 13:41 UTCEPSS rescore
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  46. 2026-05-28 13:42 UTCEPSS rescore
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  48. 2026-05-28 13:42 UTCEPSS rescore
  49. 2026-05-27 13:38 UTCEPSS rescore
  50. 2026-05-27 13:38 UTCEPSS rescore
  51. 2026-05-24 16:43 UTCEPSS rescore
  52. 2026-05-21 22:39 UTCEPSS rescore
  53. 2026-05-21 10:29 UTCEG score recompute
  54. 2026-05-21 10:29 UTCGHSA enrichment
  55. 2026-05-20 22:37 UTCEPSS rescore
  56. 2026-05-20 22:37 UTCEPSS rescore
  57. 2026-05-20 11:21 UTCEPSS rescore
  58. 2026-05-20 11:21 UTCEPSS rescore
  59. 2026-05-18 21:29 UTCEPSS rescore
  60. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitauxiliary/admin/http/linksys_tmunblock_admin_reset_bof✓ verified
    First seen Feb 19, 2014

    Linksys WRT120N tmUnblock Stack Buffer Overflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2014-125122?
CVE-2014-125122 is a medium vulnerability published on July 31, 2025. A stack-based buffer overflow vulnerability exists in the tmUnblock.cgi endpoint of the Linksys WRT120N wireless router. The vulnerability is triggered by sending a specially crafted HTTP POST request with an overly long TMBlockURL parameter to the endpoint. By exploiting this flaw, an…
When was CVE-2014-125122 disclosed?
CVE-2014-125122 was first published in the National Vulnerability Database on July 31, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-125122 actively exploited?
CVE-2014-125122 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 51.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2014-125122?
CVE-2014-125122 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2014-125122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-125122, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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