CVE-2022-22827
HIGH
8.8
CVSS Score
Published: January 8, 2022 at 02:56 AM UTC
Updated: October 14, 2026 at 04:17 PM UTC
4 products affected across 4 vendorsDebian LinuxSINEMA Remote Connect ServerLibexpat
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Severity
HIGH8.8
Exploit prediction
EPSS 3%
SSVC
No known exploit
Description
storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 2.4.3
Affected range stops below 2.4.3, so it looks safe — our inference, not a vendor statement
v < 3.1
Affected range stops below 3.1, so it looks safe — our inference, not a vendor statement
v < 8.15.310.0.0 ≤ v < 10.1.1
Affected range stops below 10.1.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.15.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (8)
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/01/17/3x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/libexpat/libexpat/pull/539Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202209-24Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5073x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://www.tenable.com/security/tns-2022-05Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlSource: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-484086.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.8HIGHCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190
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