CVE-2020-8813

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 74% probability of exploitation within the next 30 days (top 0.6% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
9.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 74%
CISA-KEV: Not listedEPSS PROB: 74%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has the graph real-time privilege.

CVSS v3
8.8
EG Score
9.0(high)
EG Risk
75(Track)
EG Risk 75/100SSVC: 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
Severity90% × 45%
Exploitation74% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
74%
EPSS %ILE
99%
KEV
Not listed

Published

February 22, 2020

Last Modified

November 21, 2024

Advisory Details (8)

Auto-updated Aug 23, 2026
No patch confirmed yet.
generic

Releases · Cacti/cacti · GitHub

https://github.com/Cacti/cacti/releases
generic

When guest users have access to realtime graphs, remote code could be executed (CVE-2020-8813) · Issue #3285 · Cacti/cacti · GitHub

https://github.com/Cacti/cacti/issues/3285
generic

cacti-exploit.py · GitHub

https://gist.github.com/mhaskar/ebe6b74c32fd0f7e1eedf1aabfd44129
generic

CactiExploit-2020-02-08_05.46.38.mp4 - Google Drive

https://drive.google.com/file/d/1A8hxTyk_NgSp04zPX-23nPbsSDeyDFio/view
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/157477/Open-AudIT-Professional-3.3.1-Remote-Code-Execution.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/156593/Cacti-1.2.8-Unauthenticated-Remote-Code-Execution.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/156538/Cacti-1.2.8-Authenticated-Remote-Code-Execution.html
generic

Locked Out | Packet Storm

http://packetstormsecurity.com/files/156537/Cacti-1.2.8-Unauthenticated-Remote-Code-Execution.html

Affected Packages

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
cacti1.2.2+ds1-2, 1.2.2+ds1-2+deb10u1, 1.2.2+ds1-2+deb10u2, 1.2.2+ds1-2+deb10u3, 1.2.2+ds1-2+deb10u41.2.2+ds1-2+deb10u5—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
cacti—1.2.10+ds1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
cacti—1.2.10+ds1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
cacti—1.2.10+ds1-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
cacti—1.2.10+ds1-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 22× 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. 2026-09-24 14:00 UTCEPSS rescore
  2. 2026-09-22 14:44 UTCEPSS rescore
  3. 2026-09-21 20:28 UTCEPSS rescore
  4. 2026-09-19 15:37 UTCEPSS rescore
  5. 2026-09-18 19:23 UTCEPSS rescore
  6. 2026-09-17 19:22 UTCEPSS rescore
  7. 2026-09-16 14:04 UTCEPSS rescore
  8. 2026-09-15 03:06 UTCEPSS rescore
  9. 2026-09-13 16:43 UTCEPSS rescore
  10. 2026-09-12 14:57 UTCEPSS rescore
  11. 2026-09-08 21:56 UTCEPSS rescore
  12. 2026-09-07 18:21 UTCOSV refresh
  13. 2026-09-06 13:44 UTCEPSS rescore
  14. 2026-09-05 15:25 UTCEPSS rescore
  15. 2026-09-04 13:57 UTCEPSS rescore
  16. 2026-09-04 13:57 UTCEPSS rescore
  17. 2026-09-02 14:08 UTCEPSS rescore
  18. 2026-09-01 03:32 UTCEPSS rescore
  19. 2026-08-30 19:14 UTCEPSS rescore
  20. 2026-08-30 01:19 UTCEPSS rescore
  21. 2026-08-28 21:37 UTCEPSS rescore
  22. 2026-08-26 14:42 UTCEPSS rescore
  23. 2026-08-21 23:45 UTCEPSS rescore
  24. 2026-08-21 04:14 UTCOSV refresh
  25. 2026-08-19 17:00 UTCEPSS rescore
Show 65 more
  1. 2026-08-16 02:11 UTCEPSS rescore
  2. 2026-08-15 01:27 UTCEPSS rescore
  3. 2026-08-13 21:57 UTCEPSS rescore
  4. 2026-08-12 13:47 UTCEPSS rescore
  5. 2026-08-09 13:43 UTCEPSS rescore
  6. 2026-08-07 16:23 UTCEPSS rescore
  7. 2026-08-05 19:40 UTCOSV refresh
  8. 2026-08-05 19:14 UTCEPSS rescore
  9. 2026-07-30 16:25 UTCEPSS rescore
  10. 2026-07-30 01:27 UTCEPSS rescore
  11. 2026-07-28 15:33 UTCEPSS rescore
  12. 2026-07-25 14:15 UTCEPSS rescore
  13. 2026-07-24 14:15 UTCEPSS rescore
  14. 2026-07-23 01:55 UTCEG score recompute▲ 0.20
  15. 2026-07-22 22:41 UTCEG score recompute▼ 0.20
  16. 2026-07-22 14:05 UTCEPSS rescore
  17. 2026-07-21 15:22 UTCEPSS rescore
  18. 2026-07-21 15:22 UTCEPSS rescore
  19. 2026-07-19 18:48 UTCOSV refresh
  20. 2026-07-19 14:28 UTCEPSS rescore
  21. 2026-07-19 14:28 UTCEPSS rescore
  22. 2026-07-16 17:00 UTCEPSS rescore
  23. 2026-07-15 16:55 UTCEPSS rescore
  24. 2026-07-15 16:55 UTCEPSS rescore
  25. 2026-07-15 01:57 UTCEPSS rescore
  26. 2026-07-11 08:25 UTCEPSS rescore
  27. 2026-07-11 08:25 UTCEPSS rescore
  28. 2026-07-09 19:07 UTCEPSS rescore
  29. 2026-07-04 06:29 UTCEPSS rescore
  30. 2026-07-04 06:29 UTCEPSS rescore
  31. 2026-07-02 08:47 UTCOSV refresh
  32. 2026-07-01 15:03 UTCEPSS rescore
  33. 2026-06-30 23:20 UTCEPSS rescore
  34. 2026-06-30 23:20 UTCEPSS rescore
  35. 2026-06-29 14:04 UTCEPSS rescore
  36. 2026-06-27 03:06 UTCEPSS rescore
  37. 2026-06-27 03:06 UTCEPSS rescore
  38. 2026-06-25 13:48 UTCEPSS rescore
  39. 2026-06-25 13:48 UTCEPSS rescore
  40. 2026-06-24 14:03 UTCEPSS rescore
  41. 2026-06-24 14:03 UTCEPSS rescore
  42. 2026-06-23 21:31 UTCEPSS rescore
  43. 2026-06-23 21:31 UTCEPSS rescore
  44. 2026-06-21 14:54 UTCEPSS rescore
  45. 2026-06-21 14:54 UTCEPSS rescore
  46. 2026-06-19 19:24 UTCEPSS rescore
  47. 2026-06-19 19:24 UTCEPSS rescore
  48. 2026-06-17 17:50 UTCEPSS rescore
  49. 2026-06-16 17:50 UTCEPSS rescore
  50. 2026-06-15 17:46 UTCEPSS rescore
  51. 2026-06-14 08:13 UTCOSV refresh
  52. 2026-06-10 13:20 UTCEPSS rescore
  53. 2026-06-04 13:10 UTCEPSS rescore
  54. 2026-06-04 13:10 UTCEPSS rescore
  55. 2026-05-31 22:29 UTCEPSS rescore
  56. 2026-05-31 22:29 UTCEPSS rescore
  57. 2026-05-31 00:15 UTCEPSS rescore
  58. 2026-05-31 00:15 UTCEPSS rescore
  59. 2026-05-28 13:43 UTCEPSS rescore
  60. 2026-05-28 13:43 UTCEPSS rescore
  61. 2026-05-27 07:21 UTCEG score recompute
  62. 2026-05-27 07:21 UTCGHSA enrichment
  63. 2026-05-26 13:42 UTCEPSS rescore
  64. 2026-05-26 13:42 UTCEPSS rescore
  65. 2026-05-24 06:36 UTCOSV refresh

Publicly available exploits

(5 references)

Working exploit code is in the public domain (2 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCp0dalirius/CVE-2020-8813-Cacti-RCE-in-graph_realtime
    First seen Sep 30, 2022

    CVE-2020-8813 - RCE through graph_realtime.php in Cacti 1.2.8

    Open source ↗
  • GitHub PoCmhaskar/CVE-2020-8813
    First seen Feb 22, 2020

    The official exploit for Cacti v1.2.8 Remote Code Execution CVE-2020-8813

    Open source ↗
  • Exploit-DBEDB-48144
    First seen Feb 3, 2020

    Cacti 1.2.8 - Authenticated Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-48145
    First seen Feb 3, 2020

    Cacti 1.2.8 - Unauthenticated Remote Code Execution

    Open source ↗
  • Nucleihttp/cves/2020/CVE-2020-8813.yaml
    First seen Jan 1, 2020

    Cacti v1.2.8 - Remote Code Execution

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2020-8813?
CVE-2020-8813 is a critical vulnerability published on February 22, 2020. graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has the graph real-time privilege.
When was CVE-2020-8813 disclosed?
CVE-2020-8813 was first published in the National Vulnerability Database on February 22, 2020, 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-2020-8813 actively exploited?
CVE-2020-8813 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74% probability of exploitation in the next 30 days, which ranks it in the top 0.5% of all scored CVEs.
What is the CVSS score of CVE-2020-8813?
CVE-2020-8813 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2020-8813?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8813, 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.

Dependency Blast Radius

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