Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, an authenticated attacker with read-only permissions for the Asterisk REST Interface (ARI) may, under certain conditions, execute write operations through REST-over-WebSocket. The authorization bypass permits arbitrary module path loading and conditional remote code execution. The Asterisk HTTP web server must be enabled and reachable, and the attacker must already have valid read-only ARI credentials. HTTP is disabled by default and binds only to 127.0.0.1 by default even when enabled. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3.
CVE-2026-57200
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.9% (59th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-111394 (ENISA EUVD)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 34EG Risk 34/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.9% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.9%
- EPSS %ILE
- 59th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.the CNA's CVSS · CVSS v3.0 or v3.1
- EG Likelihood
- 0.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-30). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 27, 2026
Last Modified
October 30, 2026
Advisory Details (10)
Auto-updated Oct 27, 2026Asterisk Release 23.4.1
Patch available: asterisk/asterisk 23.4.1
https://github.com/asterisk/asterisk/releases/tag/23.4.1Asterisk Release 22.10.1
Patch available: asterisk/asterisk 22.10.1
https://github.com/asterisk/asterisk/releases/tag/22.10.1Asterisk Release 21.12.3
Patch available: asterisk/asterisk 21.12.3
https://github.com/asterisk/asterisk/releases/tag/21.12.3Asterisk Release 20.20.1
Patch available: asterisk/asterisk 20.20.1
https://github.com/asterisk/asterisk/releases/tag/20.20.1commit c10cdbce072a (asterisk/asterisk)
Fix landed in asterisk/asterisk commit c10cdbce072a — awaiting tagged release
https://github.com/asterisk/asterisk/commit/c10cdbce072a708060cd38a89d6850808fe6bf46commit 9d198a7d16cc (asterisk/asterisk)
Fix landed in asterisk/asterisk commit 9d198a7d16cc — awaiting tagged release
https://github.com/asterisk/asterisk/commit/9d198a7d16ccba51507dfea6c1ecc511e89d698acommit 87641e9b2cd6 (asterisk/asterisk)
Fix landed in asterisk/asterisk commit 87641e9b2cd6 — awaiting tagged release
https://github.com/asterisk/asterisk/commit/87641e9b2cd62c998c5283400ba77b61b5b07dd4commit 762b4c9c39b2 (asterisk/asterisk)
Fix landed in asterisk/asterisk commit 762b4c9c39b2 — awaiting tagged release
https://github.com/asterisk/asterisk/commit/762b4c9c39b28fa5564112b0f484012298469a6ccommit 205c301a0a0b (asterisk/asterisk)
Fix landed in asterisk/asterisk commit 205c301a0a0b — awaiting tagged release
https://github.com/asterisk/asterisk/commit/205c301a0a0b0d013d4ebdf12856ebbc30405350commit 051d29a0d355 (asterisk/asterisk)
Fix landed in asterisk/asterisk commit 051d29a0d355 — awaiting tagged release
https://github.com/asterisk/asterisk/commit/051d29a0d35559e9165bab346de9422e25415533Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
- 2026-10-30 20:19 UTCEG score recompute
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
- 2026-10-27 22:01 UTCENISA EUVD ID recordedEUVD-2026-111394 · Source: ENISA EUVD
- 2026-10-27 21:26 UTCEG score recompute
- 2026-10-27 21:15 UTCEG score recomputeFirst assessed: 7.5 HIGH
- 2026-10-27 21:14 UTCMITRE cvelistV5first tracked
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Frequently asked(5)
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