01 Record

CVE-2020-8285

curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.

HighPUBLISHEDCNA: hackerone

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

curl 7.21.0 to and including 7.73.0 is vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing.

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

9.92% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 95.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2020-12-14 19:39Z5 YR AGO

Last updated

2026-04-16 14:07Z4 MO AGO

Reserved

2020-01-28

Assigning CNA

hackerone

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-674Uncontrolled RecursionClass
CWE-787Out-of-bounds WriteBase
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

b3e3dc965fd56b32e6b1c15b33dd6fc9a33177e4e7af543a0bac7f0e05f80098

05 Affected products

VendorProductVersionsPlatforms

n/ahttps://github.com/curl/curllibcurl 7.21.0 to and including 7.73.0—

06 References

hackerone.comhttps://hackerone.com/reports/1045844x_refsource_MISC
github.comhttps://github.com/curl/curl/issues/6255x_refsource_MISC
curl.sehttps://curl.se/docs/CVE-2020-8285.htmlx_refsource_MISC
lists.fedoraproject.orgFEDORA-2020-ceaf490686https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NZUVSQHN2ESHMJXNQ2Z7T2EELBB5HJXG/vendor-advisoryx_refsource_FEDORA
lists.debian.org[debian-lts-announce] 20201219 [SECURITY] [DLA 2500-1] curl security updatehttps://lists.debian.org/debian-lts-announce/2020/12/msg00029.htmlmailing-listx_refsource_MLIST
lists.fedoraproject.orgFEDORA-2020-7ab62c73bchttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAEHE2S2QLO4AO4MEEYL75NB7SAH5PSL/vendor-advisoryx_refsource_FEDORA
security.gentoo.orgGLSA-202012-14https://security.gentoo.org/glsa/202012-14vendor-advisoryx_refsource_GENTOO
www.debian.orgDSA-4881https://www.debian.org/security/2021/dsa-4881vendor-advisoryx_refsource_DEBIAN
seclists.org20210427 APPLE-SA-2021-04-26-3 Security Update 2021-002 Catalinahttp://seclists.org/fulldisclosure/2021/Apr/51mailing-listx_refsource_FULLDISC
www.oracle.comhttps://www.oracle.com/security-alerts/cpuApr2021.htmlx_refsource_MISC
security.netapp.comhttps://security.netapp.com/advisory/ntap-20210122-0007/x_refsource_CONFIRM
support.apple.comhttps://support.apple.com/kb/HT212325x_refsource_CONFIRM
support.apple.comhttps://support.apple.com/kb/HT212326x_refsource_CONFIRM
support.apple.comhttps://support.apple.com/kb/HT212327x_refsource_CONFIRM
lists.apache.org[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emailing-listx_refsource_MLIST
lists.apache.org[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emailing-listx_refsource_MLIST
www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC
www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfx_refsource_CONFIRM

01 Record index

CVE-2020-8285

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2020-8285

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References