Security readout for executives and security teams
A flaw in curl/libcurl could leak small amounts of internal memory when TELNET options are sent. The issue affects confidentiality only and requires use of a rarely used TELNET option. Business risk is generally moderate, but higher where legacy automation contacts untrusted TELNET services. Exposure is most likely in systems embedding affected libcurl versions or scripts using curl TELNET support with -t or CURLOPT_TELNETOPTIONS. Most modern web and API curl usage is unlikely to exercise this path. Vendor advisories show downstream exposure across operating systems and appliances. Handle through normal vulnerability management unless TELNET-based automation or affected appliances are present. Prioritize patching internet-connected or third-party TELNET workflows because any leaked memory crosses a clear-text channel to the server. Mitigation focus: Inventory curl and libcurl versions across servers, endpoints, containers, and appliances.; Upgrade curl/libcurl beyond 7.77.0 using vendor-supported packages or firmware.; Prioritize systems that use TELNET, curl -t, or CURLOPT_TELNETOPTIONS..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-22925 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://hackerone.com/reports/1223882CVE reference
- FEDORA-2021-5d21b90a30CVE reference · vendor-advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlCVE reference
- https://security.netapp.com/advisory/ntap-20210902-0003/CVE reference
- https://support.apple.com/kb/HT212805CVE reference
- https://support.apple.com/kb/HT212804CVE reference
- https://www.oracle.com/security-alerts/cpujan2022.htmlCVE reference
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfCVE reference
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfCVE reference
- GLSA-202212-01CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.