Security readout for executives and security teams
This curl flaw can let a network man-in-the-middle make data retrieved over IMAP or POP3 with STARTTLS appear to come from the protected mail server. It is not a broad remote takeover issue, but it can corrupt trusted mail retrieval results where affected curl versions are used. Exposure is most likely in applications, scripts, appliances, or operating system packages using curl or libcurl 7.20.0 through 7.78.0 to retrieve IMAP or POP3 data with STARTTLS enabled. Treat as a moderate integrity risk. Patch during normal vulnerability remediation cycles, but raise priority for systems that automate mail retrieval over untrusted networks or rely on retrieved mail content for business decisions. Mitigation focus: Upgrade curl or libcurl outside the affected version range.; Apply vendor security updates for operating systems and bundled products.; Prioritize systems using curl for IMAP or POP3 STARTTLS retrieval..
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
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2021-22947 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
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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:H/PR:N/UI:N/S:U/C:N/I:H/A:N2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://hackerone.com/reports/1334763CVE reference
- [debian-lts-announce] 20210930 [SECURITY] [DLA 2773-1] curl security updateCVE reference · mailing-list
- FEDORA-2021-fc96a3a749CVE reference · vendor-advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlCVE reference
- FEDORA-2021-1d24845e93CVE reference · vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2022.htmlCVE reference
- https://security.netapp.com/advisory/ntap-20211029-0003/CVE reference
- https://www.oracle.com/security-alerts/cpuapr2022.htmlCVE reference
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfCVE reference
- https://support.apple.com/kb/HT213183CVE reference
- https://www.oracle.com/security-alerts/cpujul2022.htmlCVE reference
- DSA-5197CVE reference · vendor-advisory
- [debian-lts-announce] 20220828 [SECURITY] [DLA 3085-1] curl security updateCVE reference · mailing-list
- 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.
Cryptographic Issues
Cryptographic Issues represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.