libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
総合評価: CVE-2019-20838 は中リスク(62.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.77%、84 パーセンタイル) 根拠: 直近 1 日で EPSS が +2.54% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.23% | 2.77% | +2.54% |
| 2 | 2026-05-28 | 0.31% | 0.23% | -0.07% |
| 3 | 2025-11-21 | — | 0.31% | — |
EPSS の全履歴 (全 19 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2019-20838: 1 source package rows (pcre); 10 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 10. | https://security.alpinelinux.org/vuln/CVE-2019-20838 |
debian
|
unimportant | CVE-2019-20838 unimportant priority: Debian including 1 source packages (pcre3), 2 status rows across 2 suites (bookworm, bullseye): open 2. | https://security-tracker.debian.org/tracker/CVE-2019-20838 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2019-20838 |
suse
|
high | CVE-2019-20838 severity important: SUSE including 501 source package names (0.0.17-1.1:libpcre1-8.45-20.10.1, 0.1.0:libpcre1-8.45-20.10.1, …), 1210 product×package rows across 567 product lines (Container bci/bci-base-fips, Container bci/bci-busybox, … (567 product lines)): Fixed 1050, Known Affected 157, Known Not Affected 3. | https://www.suse.com/security/cve/CVE-2019-20838/ |
ubuntu
|
low | CVE-2019-20838 low priority: Ubuntu including 1 source packages (pcre3), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 8, released 5, needed 2, not-affected 2. | https://ubuntu.com/security/CVE-2019-20838 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| pcre | pcre | < 8.43 | cpe:2.3:a:pcre:pcre:*:*:*:*:*:*:*:* |
| apple | macos | < 11.0.1 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| splunk | universal_forwarder | >= 8.2.0, < 8.2.12 | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| splunk | universal_forwarder | >= 9.0.0, < 9.0.6 | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| splunk | universal_forwarder | 9.1.0 | cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://seclists.org/fulldisclosure/2020/Dec/32 | Mailing List Third Party Advisory |
| http://seclists.org/fulldisclosure/2021/Feb/14 | Mailing List Third Party Advisory |
| https://bugs.gentoo.org/717920 | Issue Tracking Patch Third Party Advisory VDB Entry |
| https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E | Mailing List Third Party Advisory |
| https://support.apple.com/kb/HT211931 | Vendor Advisory |
| https://support.apple.com/kb/HT212147 | Vendor Advisory |
| https://www.pcre.org/original/changelog.txt | Release Notes Vendor Advisory |