CVE-2019-15956

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 1.0%, top 41% 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
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

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

A vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform an unauthorized system reset on an affected device. The vulnerability is due to improper authorization controls for a specific URL in the web management interface. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could have a twofold impact: the attacker could either change the administrator password, gaining privileged access, or reset the network configuration details, causing a denial of service (DoS) condition. In both scenarios, manual intervention is required to restore normal operations.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
58.6%
KEV
Not listed

Published

November 26, 2019

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 44× 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. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:41 UTCEG score recompute
  3. 2026-07-22 22:20 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
  5. 2026-07-21 15:22 UTCEPSS rescore
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  21. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-05 02:27 UTCEPSS rescore
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  4. 2026-07-02 16:56 UTCEPSS rescore
  5. 2026-07-01 15:03 UTCEPSS rescore
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  7. 2026-06-30 23:20 UTCEPSS rescore
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  9. 2026-06-28 14:04 UTCEPSS rescore
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  18. 2026-06-23 21:30 UTCEPSS rescore
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  20. 2026-06-22 14:23 UTCEPSS rescore
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  22. 2026-06-21 14:54 UTCEPSS rescore
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  24. 2026-06-21 01:57 UTCEPSS rescore
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  26. 2026-06-19 19:23 UTCEPSS rescore
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  28. 2026-06-18 17:50 UTCEPSS rescore
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  36. 2026-06-11 13:58 UTCEPSS rescore
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  38. 2026-06-10 22:16 UTCEPSS rescore
  39. 2026-06-10 13:19 UTCEPSS rescore
  40. 2026-06-08 14:15 UTCEPSS rescore
  41. 2026-06-08 14:14 UTCEPSS rescore
  42. 2026-06-07 15:23 UTCEPSS rescore
  43. 2026-06-07 15:22 UTCEPSS rescore
  44. 2026-06-06 13:45 UTCEPSS rescore
  45. 2026-06-06 13:45 UTCEPSS rescore
  46. 2026-06-05 22:45 UTCEPSS rescore
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  48. 2026-06-05 06:08 UTCEPSS rescore
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  50. 2026-06-04 13:10 UTCEPSS rescore
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  52. 2026-06-02 20:11 UTCEPSS rescore
  53. 2026-06-01 13:50 UTCEPSS rescore
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  55. 2026-05-31 22:29 UTCEPSS rescore
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  57. 2026-05-29 13:42 UTCEPSS rescore
  58. 2026-05-28 13:43 UTCEPSS rescore
  59. 2026-05-27 13:38 UTCEPSS rescore
  60. 2026-05-27 11:10 UTCEG score recompute
  61. 2026-05-27 11:10 UTCGHSA enrichment
  62. 2026-05-26 13:42 UTCEPSS rescore
  63. 2026-05-26 13:42 UTCEPSS rescore
  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore
  66. 2026-05-25 03:37 UTCOSV refresh

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Frequently asked(5)

What is CVE-2019-15956?
CVE-2019-15956 is a high vulnerability published on November 26, 2019. A vulnerability in the web management interface of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to perform an unauthorized system reset on an affected device. The vulnerability is due to improper authorization controls for a specific…
When was CVE-2019-15956 disclosed?
CVE-2019-15956 was first published in the National Vulnerability Database on November 26, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-15956 actively exploited?
CVE-2019-15956 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 58.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-15956?
CVE-2019-15956 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2019-15956?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-15956, 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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