CVE-2016-1343

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 10.0Exploit: None knownExposed: 0

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

The XML parser in Cisco Information Server (CIS) 6.2 allows remote attackers to read arbitrary files or cause a denial of service (CPU and memory consumption) via an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka Bug ID CSCuy39059.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity100% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
73%
KEV
Not listed

Published

April 30, 2016

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

Cisco Information Server XML Parser Denial of Service Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-cis

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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.

Showing the most recent 100 of 127 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
  2. 2026-08-18 13:43 UTCEPSS rescore
  3. 2026-08-17 13:42 UTCEPSS rescore
  4. 2026-08-16 14:51 UTCEPSS rescore
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  7. 2026-08-12 13:46 UTCEPSS rescore
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  9. 2026-08-09 13:42 UTCEPSS rescore
  10. 2026-08-08 16:32 UTCEPSS rescore
  11. 2026-08-06 13:42 UTCEPSS rescore
  12. 2026-08-05 19:12 UTCEPSS rescore
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  17. 2026-07-30 16:23 UTCEPSS rescore
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  19. 2026-07-28 15:31 UTCEPSS rescore
  20. 2026-07-26 14:50 UTCEPSS rescore
  21. 2026-07-25 14:13 UTCEPSS rescore
  22. 2026-07-23 14:14 UTCEPSS rescore
  23. 2026-07-23 01:21 UTCEG score recompute
  24. 2026-07-22 22:01 UTCEG score recompute
  25. 2026-07-22 14:04 UTCEPSS rescore
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  1. 2026-07-21 15:21 UTCEPSS rescore
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  3. 2026-07-20 17:03 UTCEPSS rescore
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  7. 2026-07-18 10:00 UTCEPSS rescore
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  9. 2026-07-16 16:59 UTCEPSS rescore
  10. 2026-07-16 16:59 UTCEPSS rescore
  11. 2026-07-15 16:54 UTCEPSS rescore
  12. 2026-07-15 16:54 UTCEPSS rescore
  13. 2026-07-15 01:56 UTCEPSS rescore
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  15. 2026-07-13 22:26 UTCEPSS rescore
  16. 2026-07-13 06:09 UTCEPSS rescore
  17. 2026-07-12 05:43 UTCEPSS rescore
  18. 2026-07-12 05:43 UTCEPSS rescore
  19. 2026-07-11 08:23 UTCEPSS rescore
  20. 2026-07-09 19:05 UTCEPSS rescore
  21. 2026-07-08 15:10 UTCEPSS rescore
  22. 2026-07-07 13:42 UTCEPSS rescore
  23. 2026-07-06 16:24 UTCEPSS rescore
  24. 2026-07-06 16:24 UTCEPSS rescore
  25. 2026-07-06 02:20 UTCEPSS rescore
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  27. 2026-07-05 02:27 UTCEPSS rescore
  28. 2026-07-04 06:28 UTCEPSS rescore
  29. 2026-07-01 15:02 UTCEPSS rescore
  30. 2026-06-30 23:19 UTCEPSS rescore
  31. 2026-06-29 14:03 UTCEPSS rescore
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  36. 2026-06-25 13:47 UTCEPSS rescore
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  38. 2026-06-24 14:02 UTCEPSS rescore
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  40. 2026-06-23 21:30 UTCEPSS rescore
  41. 2026-06-21 14:54 UTCEPSS rescore
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  43. 2026-06-21 01:57 UTCEPSS rescore
  44. 2026-06-21 01:57 UTCEPSS rescore
  45. 2026-06-19 19:23 UTCEPSS rescore
  46. 2026-06-19 19:23 UTCEPSS rescore
  47. 2026-06-18 17:50 UTCEPSS rescore
  48. 2026-06-17 17:50 UTCEPSS rescore
  49. 2026-06-17 17:50 UTCEPSS rescore
  50. 2026-06-16 17:50 UTCEPSS rescore
  51. 2026-06-16 17:50 UTCEPSS rescore
  52. 2026-06-15 17:45 UTCEPSS rescore
  53. 2026-06-14 23:14 UTCEPSS rescore
  54. 2026-06-13 22:57 UTCEPSS rescore
  55. 2026-06-13 22:57 UTCEPSS rescore
  56. 2026-06-12 23:09 UTCEPSS rescore
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  58. 2026-06-11 13:57 UTCEPSS rescore
  59. 2026-06-10 22:15 UTCEPSS rescore
  60. 2026-06-10 13:18 UTCEPSS rescore
  61. 2026-06-08 14:14 UTCEPSS rescore
  62. 2026-06-07 15:22 UTCEPSS rescore
  63. 2026-06-07 15:22 UTCEPSS rescore
  64. 2026-06-06 13:45 UTCEPSS rescore
  65. 2026-06-05 22:44 UTCEPSS rescore
  66. 2026-06-05 06:08 UTCEPSS rescore
  67. 2026-06-05 06:08 UTCEPSS rescore
  68. 2026-06-04 13:10 UTCEPSS rescore
  69. 2026-06-04 13:10 UTCEPSS rescore
  70. 2026-06-02 20:10 UTCEPSS rescore
  71. 2026-05-31 22:28 UTCEPSS rescore
  72. 2026-05-31 22:28 UTCEPSS rescore
  73. 2026-05-31 00:14 UTCEPSS rescore
  74. 2026-05-29 13:41 UTCEPSS rescore
  75. 2026-05-28 13:42 UTCEPSS rescore

Frequently asked(5)

What is CVE-2016-1343?
CVE-2016-1343 is a critical vulnerability published on April 30, 2016. The XML parser in Cisco Information Server (CIS) 6.2 allows remote attackers to read arbitrary files or cause a denial of service (CPU and memory consumption) via an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue, aka Bug ID…
When was CVE-2016-1343 disclosed?
CVE-2016-1343 was first published in the National Vulnerability Database on April 30, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-1343 actively exploited?
CVE-2016-1343 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 26.5% of all scored CVEs.
What is the CVSS score of CVE-2016-1343?
CVE-2016-1343 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2016-1343?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-1343, 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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