The parse_string function in cjson.c in the cJSON library mishandles UTF8/16 strings, which allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a non-hex character in a JSON string, which triggers a heap-based buffer overflow.
総合評価: CVE-2016-4303 は悪用リスクが高い(86.1/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 6.83%、93 パーセンタイル) 根拠: 公開エクスプロイトが 2 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 7.58% | 6.83% | -0.74% |
| 2 | 2026-05-28 | 5.73% | 7.58% | +1.85% |
| 3 | 2025-09-22 | — | 5.73% | — |
EPSS の全履歴 (全 9 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-4303 not yet assigned priority: Debian including 1 source packages (iperf3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-4303 |
suse
|
critical | CVE-2016-4303 severity critical: SUSE including 11 source package names (iperf, iperf-3.1.3-1.3, …), 13 product×package rows across 5 product lines (SUSE Enterprise Storage 4, SUSE Enterprise Storage 6, … (5 product lines)): Fixed 9, Known Not Affected 4. | https://www.suse.com/security/cve/CVE-2016-4303/ |
ubuntu
|
medium | CVE-2016-4303 medium priority: Ubuntu including 2 source packages (iperf, iperf3), 34 status rows across 17 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 25, ignored 4, DNE 2, released 2, needs-triage 1. | https://ubuntu.com/security/CVE-2016-4303 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| es | iperf3 | >= 3.0, < 3.0.12 | cpe:2.3:a:es:iperf3:*:*:*:*:*:*:*:* |
| es | iperf3 | >= 3.1, < 3.1.3 | cpe:2.3:a:es:iperf3:*:*:*:*:*:*:*:* |
| novell | suse_package_hub_for_suse_linux_enterprise | 12 | cpe:2.3:a:novell:suse_package_hub_for_suse_linux_enterprise:12:*:*:*:*:*:*:* |
| opensuse | leap | 42.1 | cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://blog.talosintel.com/2016/06/esnet-vulnerability.html | Exploit Third Party Advisory |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00082.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-updates/2016-08/msg00090.html | Mailing List Third Party Advisory |
| http://software.es.net/iperf/news.html#security-issue-iperf-3-1-3-iperf-3-0-12-released | Release Notes Third Party Advisory |
| http://www.talosintelligence.com/reports/TALOS-2016-0164/ | Exploit Third Party Advisory |
| https://github.com/esnet/iperf/commit/91f2fa59e8ed80dfbf400add0164ee0e508e412a | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/01/msg00023.html | Mailing List Third Party Advisory |
| https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc | Third Party Advisory |