CWE · MITRE source
CWE-347Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
Last updated: 04 July 2026 08:17 UTC
Cumulative inbound coverage
How completely the frameworks we cross-walk collectively cover this — the verdict is the strongest single mapping (overlapping partials are not summed); breadth shows the corroboration behind it.
Collective: full · 15 mapping(s) from 8 framework(s): ATT&CK 5 (mostly) · STIG oracle linux 9 2 (full) · STIG oracle linux 8 2 (full) · STIG rhel 7 2 (mostly) · STIG rhel 8 1 (full) · STIG rhel 9 1 (mostly) · CAPEC 1 (partial) · OWASP-Web 1 (partial)
OWASP Top 10 for Web (2025)
This weakness contributes to A04:2025 Cryptographic Failures.
NIST 800-53 r5 controls that address this weakness (7)AI
| Control | Title | Family | Why it addresses this CWE |
|---|---|---|---|
SC-17 | Public Key Infrastructure Certificates | SC | PKI certificates under an approved policy require cryptographic signature verification on issuance and validation. |
SC-20 | Secure Name/Address Resolution Service (Authoritative Source) | SC | Requires cryptographic signatures on authoritative data and support for verifying the chain of trust. |
SC-21 | Secure Name/Address Resolution Service (Recursive or Caching Resolver) | SC | Mandates verification of cryptographic signatures (e.g., DNSSEC RRSIG) on resolution responses, addressing missing or bypassed signature checks. |
CM-14 | Signed Components | CM | Requires verification of digital signatures using organization-approved certificates before installation, directly preventing improper verification of cryptographic signatures. |
SA-19 | Component Authenticity | SA | Component authenticity commonly depends on cryptographic signatures; the control enforces proper verification of those signatures. |
SI-7 | Software, Firmware, and Information Integrity | SI | Integrity tools commonly rely on cryptographic signatures whose improper validation this weakness covers. |
SR-11 | Component Authenticity | SR | Authenticity validation commonly relies on cryptographic signature or certificate checks that this control enforces. |
MITRE ATT&CK techniques this weakness enables
Our own two-way CWE↔ATT&CK cross-walk — a direct mapping with no public source (the CWE→CAPEC→ATT&CK chain leaves most top weaknesses, incl. XSS and SQLi, mapped to nothing). Drafted by Grok and spot-checked by Claude Opus 4.8.
Direction: ← other covers this;
→ this covers other (F/M/P = full / mostly /
partial).
Top CVEs of this weakness type, ranked by Risk Priority
| CVE | Risk | CVSS | EPSS | Published |
|---|---|---|---|---|
CVE-2013-3900 KEV | 10.0 | 5.5 | 0.4465 | 2013-12-11 |
CVE-2020-2021 KEV | 10.0 | 10.0 | 0.0436 | 2020-06-29 |
CVE-2020-1464 KEV | 10.0 | 7.8 | 0.4113 | 2020-08-17 |
CVE-2025-47827 KEV UPD | 10.0 | 4.6 | 0.0382 | 2025-06-05 |
CVE-2025-59718 KEV UPD | 10.0 | 9.8 | 0.6583 | 2025-12-09 |
CVE-2026-48558 KEV UPD | 10.0 | 10.0 | 0.0116 | 2026-06-12 |
CVE-2018-16042 | 8.0 | 6.5 | 0.8243 | 2019-01-18 |
CVE-2021-22160 | 8.0 | 9.8 | 0.5293 | 2021-05-26 |
CVE-2025-25292 | 8.0 | 9.8 | 0.6379 | 2025-03-12 |
CVE-2017-2423 | 7.0 | 9.8 | 0.0175 | 2017-04-02 |
CVE-2018-1000076 | 7.0 | 9.8 | 0.0304 | 2018-03-13 |
CVE-2017-18146 | 7.0 | 9.8 | 0.0095 | 2018-04-11 |
CVE-2018-12356 | 7.0 | 9.8 | 0.0465 | 2018-06-15 |
CVE-2017-3198 | 7.0 | 9.8 | 0.0160 | 2018-07-09 |
CVE-2018-8955 | 7.0 | 9.8 | 0.0426 | 2018-10-24 |
CVE-2018-5923 | 7.0 | 9.8 | 0.0261 | 2019-03-27 |
CVE-2019-6318 | 7.0 | 9.8 | 0.0261 | 2019-04-11 |
CVE-2019-13177 | 7.0 | 9.8 | 0.0162 | 2019-07-02 |
CVE-2019-1010263 | 7.0 | 9.8 | 0.0130 | 2019-07-17 |
CVE-2019-1010161 | 7.0 | 9.8 | 0.0110 | 2019-07-25 |
CVE-2014-3585 | 7.0 | 9.8 | 0.0106 | 2019-11-22 |
CVE-2019-14859 | 7.0 | 9.1 | 0.0160 | 2020-01-02 |
CVE-2020-6174 | 7.0 | 9.8 | 0.0098 | 2020-02-05 |
CVE-2019-20597 | 7.0 | 9.1 | 0.0025 | 2020-03-24 |
CVE-2020-1026 | 7.0 | 9.8 | 0.0254 | 2020-04-15 |