02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: fortinetA buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.48% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 39.2% of scored records. A rank, not a probability.
- NVD base score
- 6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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.
SCHEMA: 5.1
- Published
- 2021-12-08 11:01Z4 YR AGO
- Last updated
- 2025-10-16 09:46Z10 MO AGO
- Reserved
- 2021-10-20
- Assigning CNA
- fortinet
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.3)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
- Weaknesses
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.1
- Document digest
- 49cc964a92db93d0c1ce95b73c9074202be2df0b15b201fbd82b9d8030b825b4
05 Affected products
PAIRS: 14VendorProductVersionsPlatforms
FortinetFortiOS7.0.0 to 7.0.2, 6.4.0 to 6.4.7, 6.2.0 to 6.2.9, 6.0.0 to 6.0.13, 5.6.0 to 5.6.14, 5.4.0 to 5.4.13, 5.2.0 to 5.2.15, 5.0.0 to 5.0.14— FortinetFortiDDoS-F6.4.0 to 6.4.1, 6.3.0, 6.2.0 to 6.2.2, 6.1.0 to 6.1.4— FortinetFortiVoice6.4.0 to 6.4.4, 6.0.0 to 6.0.10— FortinetFortiProxy7.0.0 to 7.0.1, 2.0.0 to 2.0.7, 1.2.0 to 1.2.13, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7— FortinetFortiRecorder6.4.0 to 6.4.2, 6.0.0 to 6.0.10, 2.7.0 to 2.7.7, 2.6.0 to 2.6.3— FortinetFortiPortal6.0.0 to 6.0.10, 5.3.0 to 5.3.8, 5.2.0 to 5.2.6, 5.1.0 to 5.1.2, 5.0.0 to 5.0.3— FortinetFortiMail7.0.0 to 7.0.2, 6.4.0 to 6.4.6, 6.2.0 to 6.2.7, 6.0.0 to 6.0.12, 5.4.0 to 5.4.12— FortinetFortiAnalyzer7.0.0 to 7.0.2, 6.4.0 to 6.4.7, 6.2.0 to 6.2.13, 6.0.0 to 6.0.12— FortinetFortiNDR1.5.0 to 1.5.2, 1.4.0, 1.3.0 to 1.3.1, 1.2.0, 1.1.0— FortinetFortiDDoS5.5.0 to 5.5.1, 5.4.0 to 5.4.3, 5.3.0 to 5.3.2, 5.2.0, 5.1.0, 5.0.0, 4.7.0, 4.6.0, 4.5.0, 4.4.0 to 4.4.2— FortinetFortiSwitch7.0.0 to 7.0.3, 6.4.0 to 6.4.9, 6.2.0 to 6.2.7, 6.0.0 to 6.0.7— FortinetFortiADC6.2.0 to 6.2.2, 6.1.0 to 6.1.5, 6.0.0 to 6.0.4, 5.4.0 to 5.4.5, 5.3.0 to 5.3.7, 5.2.0 to 5.2.8, 5.1.0 to 5.1.7, 5.0.0 to 5.0.4— FortinetFortiWeb6.4.0 to 6.4.1, 6.3.0 to 6.3.16, 6.2.0 to 6.2.8, 6.1.0 to 6.1.4, 6.0.0 to 6.0.8, 5.9.0 to 5.9.2, 5.8.5 to 5.8.7, 5.8.0 to 5.8.3, 5.7.0 to 5.7.3, 5.6.0 to 5.6.2, 5.5.0 to 5.5.7, 5.4.0 to 5.4.1, 5.3.0 to 5.3.9, 5.2.0 to 5.2.4, 5.1.0 to 5.1.4, 5.0.0 to 5.0.6— FortinetFortiManager7.0.0 to 7.0.2, 6.4.0 to 6.4.7, 6.2.0 to 6.2.13, 6.0.0 to 6.0.12— SRC: CNA
Upgrade to FortiOS version 7.0.3 or above
Upgrade to FortiOS version 6.4.8 or above
Upgrade to FortiOS version 6.2.10 or above
Upgrade to FortiOS version 6.0.14 or above
Upgrade to FortiDDoS-F version 6.4.2 or above
Upgrade to FortiDDoS-F version 6.3.1 or above
Upgrade to FortiDDoS-F version 6.2.3 or above
Upgrade to FortiDDoS-F version 6.1.5 or above
Upgrade to FortiOS-6K7K version 6.4.8 or above
Upgrade to FortiOS-6K7K version 6.2.9 or above
Upgrade to FortiVoice version 6.4.5 or above
Upgrade to FortiVoice version 6.0.11 or above
Upgrade to FortiProxy version 7.0.2 or above
Upgrade to FortiProxy version 2.0.8 or above
Upgrade to FortiRecorder version 7.0.0 or above
Upgrade to FortiRecorder version 6.4.3 or above
Upgrade to FortiRecorder version 6.0.11 or above
Upgrade to upcoming FortiRecorder version 2.7.8 or above
Upgrade to FortiPortal version 6.0.11 or above
Upgrade to FortiMail version 7.2.0 or above
Upgrade to FortiMail version 7.0.3 or above
Upgrade to FortiMail version 6.4.7 or above
Upgrade to FortiAnalyzer version 7.0.3 or above
Upgrade to FortiAnalyzer version 6.4.8 or above
Upgrade to FortiNDR version 7.0.0 or above
Upgrade to FortiDDoS version 5.6.0 or above
Upgrade to FortiDDoS version 5.5.2 or above
Upgrade to FortiSwitch version 7.2.0 or above
Upgrade to FortiSwitch version 7.0.4 or above
Upgrade to FortiSwitch version 6.4.10 or above
Upgrade to FortiADC version 7.0.1 or above
Upgrade to FortiADC version 6.2.3 or above
Upgrade to FortiADC version 6.1.6 or