CVE-2022-23610

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.7% (52nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

wire-server provides back end services for Wire, an open source messenger. In versions of wire-server prior to the 2022-01-27 release, it was possible to craft DSA Signatures to bypass SAML SSO and impersonate any Wire user with SAML credentials. In teams with SAML, but without SCIM, it was possible to create new accounts with fake SAML credentials. Under certain conditions that can be established by an attacker, an upstream library for parsing, rendering, signing, and validating SAML XML data was accepting public keys as trusted that were provided by the attacker in the signature. As a consequence, the attacker could login as any user in any Wire team with SAML SSO enabled. If SCIM was not enabled, the attacker could also create new users with new SAML NameIDs. In order to exploit this vulnerability, the attacker needs to know the SSO login code (distributed to all team members with SAML credentials and visible in the Team Management app), the SAML EntityID identifying the IdP (a URL not considered sensitive, but usually hard to guess, also visible in Team Management), and the SAML NameID of the user (usually an email address or a nick). The issue has been fixed in wire-server 2022-01-27 and is already deployed on all Wire managed services. On premise instances of wire-server need to be updated to 2022-01-27, so that their backends are no longer affected. There are currently no known workarounds. More detailed information about how to reproduce the vulnerability and mitigation strategies is available in the GitHub Security Advisory.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
52nd
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

March 16, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jul 22, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

Improper Verification of Cryptographic Signature · Advisory · wireapp/wire-server · GitHub

https://github.com/wireapp/wire-server/security/advisories/GHSA-9jg9-9g37-4424
GitHub release Patch Available

2022-01-27

Patch available: wireapp/wire-server v2022-01-27

https://github.com/wireapp/wire-server/releases/tag/v2022-01-27

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 41× 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.

Showing the most recent 96 of 194 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 98 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  2. 2026-10-23 09:04 UTCEG score recompute
  3. 2026-10-22 16:30 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  5. 2026-10-21 16:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  7. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  9. 2026-10-19 16:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  11. 2026-10-18 16:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  13. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  14. 2026-10-17 04:48 UTCEG score recompute
  15. 2026-10-16 16:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
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  17. 2026-10-15 16:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  18. 2026-10-15 01:03 UTCEG score recompute
  19. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-10-13 22:15 UTCEG score recompute
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  22. 2026-10-12 18:59 UTCEG score recompute
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  24. 2026-10-11 23:25 UTCEG score recompute
  25. 2026-10-11 13:44 UTCEPSS rescoreEPSS 0.7% · 51st percentile
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  1. 2026-10-10 19:56 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  2. 2026-10-09 20:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  3. 2026-10-08 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  4. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.7% · 51st percentile
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  8. 2026-10-03 14:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  9. 2026-09-30 15:50 UTCEG score recompute
  10. 2026-09-30 15:00 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-09-29 15:15 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-09-28 13:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-09-27 13:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  14. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  15. 2026-09-25 02:54 UTCOSV refresh
  16. 2026-09-24 14:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  17. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  18. 2026-09-20 20:13 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-09-17 19:23 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  21. 2026-09-15 03:06 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  22. 2026-09-13 16:43 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-09-12 14:57 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  24. 2026-09-11 14:49 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  25. 2026-09-11 09:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  26. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  27. 2026-09-07 15:58 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  28. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  29. 2026-09-05 18:25 UTCOSV refresh
  30. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  31. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.7% · 50th percentile
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  45. 2026-08-19 05:29 UTCOSV refresh
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  59. 2026-08-04 01:27 UTCOSV refresh
  60. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.7% · 49th percentile
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  69. 2026-07-23 02:08 UTCEG score recompute
  70. 2026-07-22 22:55 UTCEG score recompute
  71. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.7% · 48th percentile

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Frequently asked(5)

What is CVE-2022-23610?
CVE-2022-23610 is a critical-severity vulnerability; its CVE record was published on March 16, 2022. wire-server provides back end services for Wire, an open source messenger. In versions of wire-server prior to the 2022-01-27 release, it was possible to craft DSA Signatures to bypass SAML SSO and impersonate any Wire user with SAML credentials. In teams with SAML, but without SCIM, it was…
When was the CVE record for CVE-2022-23610 published?
The CVE record for CVE-2022-23610 was published on March 16, 2022. 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 21, 2024; the record at its source may have been updated since.
Is CVE-2022-23610 actively exploited?
CVE-2022-23610 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-23610?
CVE-2022-23610 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2022-23610?
A fix for CVE-2022-23610 is available: update to the fixed version the vendor names in its advisory.

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