Off-by-one error in the exif_convert_utf16_to_utf8 function in exif-entry.c in the EXIF Tag Parsing Library (aka libexif) before 0.6.21 allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted EXIF tags in an image.
結論預警: CVE-2012-2840 綜合評估為中等風險（64.5/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 5.02%，百分位 91%） 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 近一日 EPSS 上升 +2.62%，被利用關注度持續升高。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.40% | 5.02% | +2.62% |
| 2 | 2026-05-28 | 2.17% | 2.40% | +0.23% |
| 3 | 2025-03-30 | — | 2.17% | — |
完整 EPSS 歷史 （共 11 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2012-2840: 1 source package rows (libexif); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 10, open 0. | https://security.alpinelinux.org/vuln/CVE-2012-2840 |
debian
|
not yet assigned | CVE-2012-2840 not yet assigned priority: Debian including 1 source packages (libexif), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-2840 |
gentoo
|
normal | CVE-2012-2840: 1 GLSA(s) (201401-10), 2 atom(s) (media-gfx/exif, media-libs/libexif); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-2840 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2012-2840 |
suse
|
high | CVE-2012-2840 severity important: SUSE including 23 source package names (libexif-0.6.17-2.14.1, libexif-32bit-0.6.17-2.14.1, …), 57 product×package rows across 33 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (33 product lines)): Fixed 57. | https://www.suse.com/security/cve/CVE-2012-2840/ |
ubuntu
|
low | CVE-2012-2840 low priority: Ubuntu including 1 source packages (libexif), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): released 6. | https://ubuntu.com/security/CVE-2012-2840 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| libexif_project | libexif | <= 0.6.20 | cpe:2.3:a:libexif_project:libexif:*:*:*:*:*:*:*:* |
| libexif_project | libexif | 0.6.14 | cpe:2.3:a:libexif_project:libexif:0.6.14:*:*:*:*:*:*:* |
| libexif_project | libexif | 0.6.15 | cpe:2.3:a:libexif_project:libexif:0.6.15:*:*:*:*:*:*:* |
| libexif_project | libexif | 0.6.16 | cpe:2.3:a:libexif_project:libexif:0.6.16:*:*:*:*:*:*:* |
| libexif_project | libexif | 0.6.18 | cpe:2.3:a:libexif_project:libexif:0.6.18:*:*:*:*:*:*:* |
| libexif_project | libexif | 0.6.19 | cpe:2.3:a:libexif_project:libexif:0.6.19:*:*:*:*:*:*:* |