CVE-2020-9546: debian debian_linux Deserialization of Untrusted Data
Modified
AliasesUBUNTU-CVE-2020-9546DEBIAN-CVE-2020-9546CGA-36rg-h7qp-rr4rCGA-39vh-2hm7-5pc7CGA-3hvj-9cg2-rw55CGA-3jjj-q23m-928qCGA-3q3w-f8v3-j8jfCGA-56q4-q627-g3q4CGA-5rqv-462x-9j69CGA-5w6m-wgfr-fg45CGA-6hxg-96hq-vccjCGA-6m7h-c6wp-rm79CGA-6wgv-h345-hr82CGA-73vq-22vj-5jw2CGA-7pgm-7qc2-w623CGA-8jgv-mgrf-hq2qCGA-8v6p-36cc-jr7qCGA-984j-jw6w-hrf4CGA-9f5j-rmcv-q6rvCGA-9mw2-6rjx-q2mmCGA-9vrv-g53w-q2g9CGA-9xv5-w8rj-95w2CGA-c26c-9j43-9mqmCGA-c28p-fmr9-vmfhCGA-cjgm-97v7-g7r7CGA-cqf7-x6p5-j7jqCGA-g5x2-723g-ph63CGA-gq5q-wgp7-wp35CGA-gv78-p9gh-2xx9CGA-h8m4-2j6p-78p4CGA-hf3p-7wvp-p8rpCGA-j4q8-pq4r-hjmxCGA-jw59-vvpv-9fq8CGA-mc72-7ccw-hp37CGA-p778-8576-7439CGA-p9jq-2xgq-hrhqCGA-pf8f-3646-mjp6CGA-pfxr-q42f-p8q3CGA-phqj-wh2c-3qrcCGA-pm4f-p4rq-v6v9GHSA-5p34-5m6p-p58gCGA-qfpg-c9rr-gvqxCGA-r67q-pgfc-wvf8CGA-rfjh-9435-wggpCGA-rjq5-48c5-2mh7CGA-rv4c-chhp-2wm8CGA-rxww-wpc6-rf8rCGA-v52g-xggq-3p4fCGA-v7h8-pxxr-qm3wCGA-vfw6-2jfr-q359CGA-w8hx-5j2h-x7jhCGA-w94h-q3f2-8xp6CGA-wcr9-q6v6-74gwCGA-wh8h-v2w3-2g5qCGA-wm27-r5xw-5hmwCGA-wxfm-jch3-vhwhCGA-x9x4-m845-6fwfCGA-xwmx-2mcf-fhjxCGA-xx7c-8c82-ppg8
Published 02-03-2020Last modified 07-10-2026
Vulnerability summary
CVE-2020-9546 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in debian debian_linux. EPSS estimates a 4.58% chance of exploitation in the next 30 days, higher than 91.6% of scored vulnerabilities.
Priority
Prioritisesevere
Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
4.58%
0%100%
Low · -0.04 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 14 · Related 2Timeline
- 02-03-2020PublishedVulnerability first disclosed.
- 07-10-2026Last modifiedVulnerability information updated.
Description
FasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shaded.com.zaxxer.hikari.HikariConfig (aka shaded hikari-config).
CVSS metrics
7 scores · 6 sources · 2 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · MavenEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.58%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
Decrease -0.04 pp
From 4.61% on 04-10-2026
04-10-202603-11-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Version check
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard28 products
- eco-java-gradle-4.10All versions (No fix recorded)
- eco-java-gradle-4.10.1All versions (No fix recorded)
- eco-java-gradle-4.10.2All versions (No fix recorded)
- eco-java-gradle-4.10.3All versions (No fix recorded)
- eco-java-gradle-4.9All versions (No fix recorded)
Oracle28 products
- agile_product_lifecycle_management9.3.6
- autovue_for_agile_product_lifecycle_management21.0.2
- banking_digital_experience18.1 | 18.2 | 18.3 | 19.1 | 19.2 | 20.1
- banking_platform≥ 2.4.0, ≤ 2.9.0
- communications_calendar_server8.0.0.4.0
Debian2 products
- jackson-databind< 2.11.1-1
- debian_linuxEOL8.0
Com.fasterxml.jackson.core1 product
- jackson-databind≥ 2.9.0, < 2.9.10.4
Fasterxml1 product
- jackson-databind≥ 2.0.0, < 2.7.9.7 | ≥ 2.8.0, < 2.8.11.6 | ≥ 2.9.0, < 2.9.10.4
Netapp1 product
- active_iq_unified_manager≥ 7.3 (No fix recorded) | ≥ 9.5 (No fix recorded)
Ubuntu1 product
- jackson-databindAll versions (No fix recorded) | < 2.4.2-3ubuntu0.1~esm2
7 vendors · 62 products
References
34 links
lists.debian.org/debian-lts-announce/2020/03/msg00008.htmlMailing ListX Refsource MLISTAdvisoryWEBThird Party Advisory- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
- medium.com/%40cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062X Refsource MISCAdvisoryWEBThird Party Advisory
Show all 34 references
- github.com/FasterXML/jackson-databind/issues/2631X Refsource MISCREPORTFIXWEBPatchThird Party Advisory
- lists.apache.org/thread.html/…Mailing ListX Refsource MLISTREPORTWEBIssue TrackingThird Party Advisory
