CVE-2026-57192

MEDIUMPre-NVD 6.06.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 6.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (51st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-111396 (ENISA EUVD)Source: ENISA EUVD

6.0EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 6.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap buffer overflow through an out-of-bounds write in the Codec2 decoder caused by a floor/ceil sample-count mismatch. The codec_codec2 module must be loaded and Codec2 must be configured on the attacked endpoint. The attacker must pass SIP authentication by username/password or source IP address matching, establish a call using Codec2, and send carefully crafted Codec2 audio packets. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

CVSS
6.0
EG Score
6.0MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100

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)
Severity60% × 45%
Impact severity (EG Severity): CVSS 6.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
0.7%
EPSS %ILE
51st
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 (6.0): severity, escalated by confirmed exploitation. This CVE's 6.0 is its impact severity (EG Severity), not escalated.

EG Severity
6.0 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

November 3, 2026

Advisory Details (10)

Auto-updated Oct 28, 2026
Patch available. Sources: github_commit, github_release.
GitHub release Patch Available

Asterisk Release 22.10.1

Patch available: asterisk/asterisk 22.10.1

https://github.com/asterisk/asterisk/releases/tag/22.10.1
GitHub release Patch Available

Asterisk Release 21.12.3

Patch available: asterisk/asterisk 21.12.3

https://github.com/asterisk/asterisk/releases/tag/21.12.3
GitHub release Patch Available

Asterisk Release 20.20.1

Patch available: asterisk/asterisk 20.20.1

https://github.com/asterisk/asterisk/releases/tag/20.20.1
GitHub commit

commit d4ccfd55ffd7 (asterisk/asterisk)

Fix landed in asterisk/asterisk commit d4ccfd55ffd7 — awaiting tagged release

https://github.com/asterisk/asterisk/commit/d4ccfd55ffd7cf6d73a6e5cde347a7464c301006
GitHub commit

commit aa40bc599a8e (asterisk/asterisk)

Fix landed in asterisk/asterisk commit aa40bc599a8e — awaiting tagged release

https://github.com/asterisk/asterisk/commit/aa40bc599a8e628859ef1c4fc944261423ceac0d
GitHub commit

commit a2f1cc611f7d (asterisk/asterisk)

Fix landed in asterisk/asterisk commit a2f1cc611f7d — awaiting tagged release

https://github.com/asterisk/asterisk/commit/a2f1cc611f7d0f21faa03e8535009df3041c434c
GitHub commit

commit a0bc717b2261 (asterisk/asterisk)

Fix landed in asterisk/asterisk commit a0bc717b2261 — awaiting tagged release

https://github.com/asterisk/asterisk/commit/a0bc717b2261f4df7cdecc22b58a5fffbd1aa398
GitHub commit

commit 9b085d48fb66 (asterisk/asterisk)

Fix landed in asterisk/asterisk commit 9b085d48fb66 — awaiting tagged release

https://github.com/asterisk/asterisk/commit/9b085d48fb66e90a0740ea59e26840421fd07acb
GitHub commit

commit 4f5cad0611c6 (asterisk/asterisk)

Fix landed in asterisk/asterisk commit 4f5cad0611c6 — awaiting tagged release

https://github.com/asterisk/asterisk/commit/4f5cad0611c67638a0a61cfedbe645045da8dd56
GitHub commit

commit 02e2d8d51efe (asterisk/asterisk)

Fix landed in asterisk/asterisk commit 02e2d8d51efe — awaiting tagged release

https://github.com/asterisk/asterisk/commit/02e2d8d51efe1f811f2929224339cb1a35ffc079

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk0.1.11-3 ... 1:22.9.0+dfsg+~cs6.16.60671434-1 (294 versions)
  • every version up to 1:22.10.1+dfsg+~cs6.17.60671434-1: fixed in 1:22.10.1+dfsg+~cs6.17.60671434-1
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 18× 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 its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  3. 2026-11-11 07:51 UTCEchelonGraph re-scored
  4. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  9. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  10. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-11-04 01:57 UTCEchelonGraph re-scored
  12. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-11-03 13:33 UTCEchelonGraph re-scored
  14. 2026-11-03 12:22 UTCEchelonGraph re-scored
  15. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  16. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  18. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  21. 2026-10-27 22:28 UTCEchelonGraph re-scored
  22. 2026-10-27 22:01 UTCENISA EUVD ID recordedEUVD-2026-111396 · Source: ENISA EUVD
  23. 2026-10-27 21:35 UTCEchelonGraph re-scoredFirst assessed: 6.0 MEDIUM
  24. 2026-10-27 21:35 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-57192?
CVE-2026-57192 is a medium-severity vulnerability; its CVE record was published on October 27, 2026. 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 20.7-cert11, 22.8-cert3, an authenticated attacker may cause a heap buffer overflow through an out-of-bounds write in the Codec2 decoder caused by a…
When was the CVE record for CVE-2026-57192 published?
The CVE record for CVE-2026-57192 was published on October 27, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 3, 2026; the record at its source may have been updated since.
Is CVE-2026-57192 actively exploited?
CVE-2026-57192 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57192?
CVE-2026-57192 has a CVSS base score of 6.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57192?
A fix for CVE-2026-57192 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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