{"id":"CVE-2021-35515","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-35515","generatedAt":"2026-11-05T01:15:59.980Z","title":"This could be used to mount a denial of service attack against services that use Compress' sevenz package.","description":"When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.","published":"2021-07-13T08:15:07.000Z","lastModified":"2026-06-17T03:57:37.000Z","status":"Modified","sourceIdentifier":"security@apache.org","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-834","CWE-835"],"affected":["apache/commons compress","netapp/active iq unified manager","netapp/oncommand insight","oracle/banking digital experience","oracle/banking enterprise default management","oracle/banking party management","oracle/banking payments","oracle/banking trade finance","oracle/banking treasury management","oracle/business process management suite","oracle/commerce guided search","oracle/communications billing and revenue management","oracle/communications cloud native core automated test suite","oracle/communications cloud native core service communication proxy","oracle/communications cloud native core unified data repository","oracle/communications diameter intelligence hub","oracle/communications session route manager","oracle/financial services crime and compliance management studio","oracle/financial services enterprise case management","oracle/flexcube universal banking","oracle/healthcare data repository","oracle/insurance policy administration","oracle/peoplesoft enterprise peopletools","oracle/primavera unifier","oracle/utilities testing accelerator","oracle/communications messaging server"],"epss":{"score":0.11567,"percentile":0.96039,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2021/07/13/1","tags":["Mailing List","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://commons.apache.org/proper/commons-compress/security-reports.html","tags":["Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r19ebfd71770ec0617a9ea180e321ef927b3fefb4c81ec5d1902d20ab%40%3Cuser.commons.apache.org%3E","tags":["Vendor Advisory"],"source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rab292091eadd1ecc63c516e9541a7f241091cf2e652b8185a6059945%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rbaea15ddc5a7c0c6b66660f1d6403b28595e2561bb283eade7d7cd69%40%3Cannounce.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rbe91c512c5385181149ab087b6c909825d34299f5c491c6482a2ed57%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rf2f4d7940371a7c7c5b679f50e28fc7fcc82cd00670ced87e013ac88%40%3Ccommits.druid.apache.org%3E","source":"security@apache.org"},{"url":"https://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E","source":"security@apache.org"},{"url":"https://security.netapp.com/advisory/ntap-20211022-0001/","tags":["Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","tags":["Patch","Third Party Advisory"],"source":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2021/07/13/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://commons.apache.org/proper/commons-compress/security-reports.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r19ebfd71770ec0617a9ea180e321ef927b3fefb4c81ec5d1902d20ab%40%3Cuser.commons.apache.org%3E","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rab292091eadd1ecc63c516e9541a7f241091cf2e652b8185a6059945%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rbaea15ddc5a7c0c6b66660f1d6403b28595e2561bb283eade7d7cd69%40%3Cannounce.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rbe91c512c5385181149ab087b6c909825d34299f5c491c6482a2ed57%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rf2f4d7940371a7c7c5b679f50e28fc7fcc82cd00670ced87e013ac88%40%3Ccommits.druid.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20211022-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuapr2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpujul2022.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com/security-alerts/cpuoct2021.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-35515","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}