GHSA-qgm6-9472-pwq7 · Severity: high · Ecosystem: rust — Integer Overflow in openssl-src
Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).
Conclusion & alert: CVE-2021-23840 is rated High Risk (69.6/100): CVSS High severity, with high exploitation likelihood (EPSS 49.80%, 99th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +49.33% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.46% | 49.80% | +49.33% |
| 2 | 2026-06-03 | 0.63% | 0.46% | -0.17% |
| 3 | 2026-05-25 | — | 0.63% | — |
Full EPSS history (75 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
GHSA-qgm6-9472-pwq7 · Severity: high · Ecosystem: rust — Integer Overflow in openssl-src
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2021-23840: 3 source package rows (openssl, openssl1.1-compat, openssl3); 45 state rows across 13 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-community, edge-main); fixed 15, open 30. | https://security.alpinelinux.org/vuln/CVE-2021-23840 |
debian
|
not yet assigned | CVE-2021-23840 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-23840 |
gentoo
|
normal | CVE-2021-23840: 1 GLSA(s) (202103-03), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-23840 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2021-23840 |
suse
|
medium | CVE-2021-23840 severity moderate: SUSE including 648 source package names (0.1.0:libopenssl1_1-1.1.0i-14.15.1, 0.1.75:libopenssl1_1-1.1.0i-14.15.1, …), 1490 product×package rows across 282 product lines (Container bci/bci-init, Container bci/dotnet-aspnet, … (282 product lines)): Fixed 1163, Known Not Affected 191, Known Affected 135, Will Not Fix 1. | https://www.suse.com/security/cve/CVE-2021-23840/ |
ubuntu
|
low | CVE-2021-23840 low priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 64 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 24, released 20, DNE 15, needed 2, needs-triage 2, ignored 1. | https://ubuntu.com/security/CVE-2021-23840 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| openssl | openssl | >= 1.0.2, < 1.0.2y | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 1.1.1, < 1.1.1j | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| tenable | log_correlation_engine | < 6.0.8 | cpe:2.3:a:tenable:log_correlation_engine:*:*:*:*:*:*:*:* |
| tenable | nessus_network_monitor | 5.11.0 | cpe:2.3:a:tenable:nessus_network_monitor:5.11.0:*:*:*:*:*:*:* |
| tenable | nessus_network_monitor | 5.11.1 | cpe:2.3:a:tenable:nessus_network_monitor:5.11.1:*:*:*:*:*:*:* |
| tenable | nessus_network_monitor | 5.12.0 | cpe:2.3:a:tenable:nessus_network_monitor:5.12.0:*:*:*:*:*:*:* |
| tenable | nessus_network_monitor | 5.12.1 | cpe:2.3:a:tenable:nessus_network_monitor:5.12.1:*:*:*:*:*:*:* |
| tenable | nessus_network_monitor | 5.13.0 | cpe:2.3:a:tenable:nessus_network_monitor:5.13.0:*:*:*:*:*:*:* |
| oracle | business_intelligence | 5.5.0.0.0 | cpe:2.3:a:oracle:business_intelligence:5.5.0.0.0:*:*:*:enterprise:*:*:* |
| oracle | business_intelligence | 5.9.0.0.0 | cpe:2.3:a:oracle:business_intelligence:5.9.0.0.0:*:*:*:enterprise:*:*:* |
| oracle | business_intelligence | 12.2.1.3.0 | cpe:2.3:a:oracle:business_intelligence:12.2.1.3.0:*:*:*:enterprise:*:*:* |
| oracle | business_intelligence | 12.2.1.4.0 | cpe:2.3:a:oracle:business_intelligence:12.2.1.4.0:*:*:*:enterprise:*:*:* |
| oracle | communications_cloud_native_core_policy | 1.15.0 | cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.15.0:*:*:*:*:*:*:* |
| oracle | enterprise_manager_for_storage_management | 13.4.0.0 | cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.4.0.0:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.4.0.0 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* |
| oracle | graalvm | 19.3.5 | cpe:2.3:a:oracle:graalvm:19.3.5:*:*:*:enterprise:*:*:* |
| oracle | graalvm | 20.3.1.2 | cpe:2.3:a:oracle:graalvm:20.3.1.2:*:*:*:enterprise:*:*:* |
| oracle | graalvm | 21.0.0.2 | cpe:2.3:a:oracle:graalvm:21.0.0.2:*:*:*:enterprise:*:*:* |
| oracle | jd_edwards_enterpriseone_tools | < 9.2.6.0 | cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* |
| oracle | jd_edwards_world_security | a9.4 | cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:* |
| oracle | mysql_server | < 5.7.33 | cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
| oracle | mysql_server | >= 8.0.15, < 8.0.23 | cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* |
| oracle | nosql_database | < 20.3 | cpe:2.3:a:oracle:nosql_database:*:*:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | < 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:*:*:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:-:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_1:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_10:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_2:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_3:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_4:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_5:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_6:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_7:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_8:*:*:*:*:*:* |
| mcafee | epolicy_orchestrator | 5.10.0 | cpe:2.3:a:mcafee:epolicy_orchestrator:5.10.0:update_9:*:*:*:*:*:* |
| fujitsu | m10-1_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m10-4_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m10-4s_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-1_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-2_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-2s_firmware | < xcp2410 | cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m10-1_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m10-4_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m10-4s_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-1_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-2_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* |
| fujitsu | m12-2s_firmware | < xcp3110 | cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* |
| nodejs | node.js | >= 10.0.0, <= 10.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 10.13.0, < 10.24.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 12.0.0, <= 12.12.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 12.13.0, < 12.21.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 14.0.0, <= 14.14.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 15.0.0, < 15.10.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | 14.15.0 | cpe:2.3:a:nodejs:node.js:14.15.0:*:*:*:lts:*:*:* |